Mox Opal

Legendary Artifact

Metalcraft — {T}: Add one mana of any colour. Activate this ability only if you control three or more artifacts.

Combos

• Mox Amber + Mox Opal

Legality

Format	Legality
1v1 Commander	Legal
Archenemy	Legal
Arena	Legal
Block Constructed	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Freeform	Legal
Gladiator	Legal
Highlander	Legal
Historic Brawl	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Modern	Legal
Modern Beyond Horizons	Legal
Oathbreaker	Legal
Planar Constructed	Legal
Planechase	Legal
PreDH	Legal
Quest Magic	Legal
Tiny Leaders	Legal
Vanguard	Legal
Vintage	Legal

Discussion (50)

Cloudy2024 on Robot Houuuuse!!!

1 month ago

what about Mox Opal?

trippy_mcfly on Cumly Cube

2 months ago

Introducing Cumly Cube 1.4! Two months ago, Cumly Cube was updated to Cumly Cube 1.3, which was touted as balanced and without any notable flaws. There is no more insidious poison than hubris! Many cards remained that were too strong, or close to unplayable. Many archetypes existed in the cube but had too little support to ever be worth drafting. Many cards failed to fit the ethos of Cumly Cube. With 89 more cuts and adds, I am now pleased to announce that, this time, Cumly Cube has reached a final form! Perhaps a few cards are still too strong, too weak, or out of place, but the vast majority of the draft pool is now in an acceptable state. Any further changes to Cumly Cube 1 will exist as minor updates, swapping out only a few cards at a time. This means that there will never be a Cumly Cube 1.5, only 1.4.1, 1.4.2, etc.

Here are the changes, provided with brief justifications:

REMOVED:

ARTIFACT

1. Basilisk Collar: equipment is not part of Cumly Cube 1
2. Hedron Archive: cut to weaken the artifact archetype
3. Mox DiamondGC: cut to weaken the artifact archetype
4. Mox Opal: cut to weaken the artifact archetype
5. Mox Tantalite: cut to weaken the artifact archetype
6. Sensei's Divining Top:cut to weaken the artifact archetype

CREATURE

1. Academy Manufactor: cut to weaken the artifact archetype
2. Archfiend of Spite: madness is not part of Cumly Cube 1
3. Arsenal Thresher: too weak
4. Augmenting Automaton: too weak
5. Autonomous Assembler: Assembly-Workers have been cut from Cumly Cube 1
6. Baleful Force: too weak
7. Battleground Geist: cut for a better Spirit card
8. Belligerent Hatchling: too weak
9. Bloodpyre Elemental: too generic of a red card
10. Bloom Hulk: there are better proliferate engines available in Cumly Cube
11. Copperhorn Scout: cut to weaken the Elf creature type
12. Crosis, the Purger: too annoying to play against
13. Deathrite Shaman: cut to weaken the Elf creature type
14. Deus of Calamity: too weak
15. Dutiful Replicator: Assembly-Workers have been cut from Cumly Cube 1
16. Dwynen's Elite: cut to weaken the Elf creature type
17. Emperor's Vanguard: cut to weaken green
18. Farhaven Elf: cut to weaken the Elf creature type
19. Fear of Exposure: cut to weaken green
20. Fertilid: cut to weaken green
21. Galazeth Prismari: cut to weaken the artifact archetype
22. Geyserfield Stalker: too weak
23. Greater Gargadon: suspend is not part of Cumly Cube 1
24. Hallowed Priest: cut for an identical card to support the Cat creature type
25. Heedless One: cut for a similar card to better support the Elf creature type
26. Hematite Golem: too weak
27. Hunted Horror: too weak
28. Impetuous Devils: too generic of a red card
29. Jeskai Student: too weak
30. Junktroller: too weak
31. Lashweed Lurker: emerge is not part of Cumly Cube 1
32. Llanowar Visionary: cut to weaken the Elf creature type
33. Lodestone Golem: we have seen enough of this card in other formats
34. Lunar Avenger: too weak
35. Maze Behemoth: cut to weaken green
36. Mishra's Self-Replicator: Assembly-Workers have been cut from Cumly Cube 1
37. Morselhoarder: too weak
38. Night Incarnate: too generic of a black card
39. Omnath, Locus of the Roil: cut to weaken the Elemental creature type
40. Phantom Nishoba: too weak
41. Quirion Ranger: cut to weaken the Elf creature type
42. Scalding Devil: cut to make room for more interesting Devil creatures
43. Self-Assembler: Assembly-Workers have been cut from Cumly Cube 1
44. Seton, Krosan Protector: cut to weaken green
45. Soul of Zendikar: cut to weaken green
46. Teferi's Sentinel: too weak
47. Thought Monitor: cut to weaken the artifact archetype
48. Torbran, Thane of Red Fell: too generic of a red card
49. Ulamog, the Infinite Gyre: cut to make room for more balanced Eldrazi creatures
50. Walking Ballista: cut to remove an infinite combo payoff accessible from the Cumly Zone

ENCHANTMENT

1. Aura ShardsGC: too powerful
2. Blood Moon: we have seen enough of this card in other formats
3. Impending Disaster: too weak
4. In Bolas's Clutches: cut for a similar but more expensive version of this effect
5. Night Soil: cut due to the presence of two other very similar cards
6. Revel in Riches: too powerful
7. Urban Utopia: cut to weaken green

LAND

1. Ancient TombGC: too powerful
2. Flagstones of Trokair: too weak
3. Mishra's WorkshopGC: too powerful
4. Urza's Saga: too powerful

INSTANT

1. Accelerate: too generic of a red card
2. Bedevil: spot removal has been removed in favor of removal found in commands, charms, and confluences
3. Fading Hope: too generic of a blue card
4. Fissure: spot removal has been removed in favor of removal found in commands, charms, and confluences
5. Fracture: spot removal has been removed in favor of removal found in commands, charms, and confluences
6. Frazzle: too generic of a blue card
7. Inside Out: too weak
8. Lens Flare: spot removal has been removed in favor of removal found in commands, charms, and confluences
9. Schismotivate: too weak
10. Seize the Initiative: too weak
11. Volt Charge: spot removal has been removed in favor of removal found in commands, charms, and confluences

PLANESWALKER

1. Karn Liberated: too generic and powerful of a draft pick
2. Nissa of Shadowed Boughs: animating lands is not part of Cumly Cube 1

SORCERY

1. Broken Bond: spot removal has been removed in favor of removal found in commands, charms, and confluences
2. Chain Reaction: too generic of a red card
3. False Dawn: too weak
4. Grim Tutor: too powerful
5. Ice Storm: spot removal has been removed in favor of removal found in commands, charms, and confluences
6. Lava Flow: spot removal has been removed in favor of removal found in commands, charms, and confluences
7. Sinkhole: spot removal has been removed in favor of removal found in commands, charms, and confluences
8. Tezzeret's Gambit: too powerful
9. Wildfire: too generic of a red card

ADDED:

ARTIFACT

1. Banner of Kinship: encourages building around creature types
2. Conduit of Worlds: supports graveyard synergies
3. Pillar of Origins: encourages building around creature types

CREATURE

1. Aetherjacket: supports the Thopter creature type
2. Ajani's Pridemate: replaces Hallowed Priest to support the Cat creature type and lifegain synergies
3. Akroan Conscriptor: supports spellslinger synergies
4. Alibou, Ancient Witness: supports the Golem creature type and other artifact decks
5. Ancient Cellarspawn: supports the Demon, Horror, and Nightmare creature types
6. Angelic Aberration: supports the Angel and Eldrazi creature types
7. Axgard Artisan: supports the Dwarf creature type
8. Bloodwater Entity: supports spellslinger synergies
9. Brass Herald: supports the Golem creature type and encourages building around creature types
10. Campus Guide: supports the Golem creature type
11. Chief of the Foundry: supports the Construct creature type and other artifact decks
12. Chrome Courier: supports the Thopter creature type
13. Cursed Wombat: supports the Nightmare creature type and +1/+1 counter decks
14. Darksteel Colossus: supports the Golem creature type
15. Duergar Hedge-Mage: supports the Dwarf creature type
16. Eidolon of Blossoms: supports the enchantment archetype
17. Endbringer: supports the Eldrazi creature type
18. Essence Depleter: supports the Eldrazi creature type
19. Gimli, Mournful Avenger: supports the Dwarf creature type
20. Gishath, Sun's Avatar: supports the Dinosaur creature type
21. Herald of Slaanesh: supports the Demon creature type
22. Hunting Velociraptor: supports the Dinosaur creature type
23. Immaculate Magistrate: replaces Heedless One to support the Elf creature type
24. It That Heralds the End: supports the Eldrazi creature type
25. Kozilek's Channeler: supports the Eldrazi creature type
26. Mayhem Devil: supports the Devil creature type
27. Patrician Geist: replaces Battleground Geist to support the Spirit creature type
28. Petravark: supports the Beast creature type
29. Pillardrop Warden: supports the Dwarf and Spirit creature types
30. Precursor Golem: supports the Golem creature type
31. Prosperous Pirates: supports the Pirate creature type
32. Quandrix Pledgemage: supports the Merfolk creature type and spellslinger synergies
33. Roaming Throne: supports the Golem creature type and encourages building around creature types
34. Rootwater Hunter: supports the Merfolk creature type
35. Shambling Suit: supports the Construct creature type and other artifact decks as well as enchantment decks
36. Shantotto, Tactician Magician: supports the Dwarf creature type and spellslinger synergies
37. Smokebraider: supports the Elemental creature type
38. Solarion: supports the Construct creature type
39. Species Specialist: encourages building around creature types
40. Squealing Devil: supports the Devil creature type
41. Tayam, Luminous Enigma: supports the Beast and Nightmare creature types
42. The Balrog of Moria: supports the Demon creature type
43. The Lady of Otaria: supports the Dwarf creature type
44. Three Tree Mascot: adds mana fixing and encourages building around creature types
45. Titans' Vanguard: supports the Eldrazi creature type
46. Torch Fiend: supports the Devil creature type
47. Ulamog's Dreadsire: supports the Eldrazi creature type
48. Vengeful Devil: supports the Devil creature type
49. Venomcrawler: supports the Demon creature type
50. Wavecrash Triton: supports the Merfolk creature type and spellslinger synergies
51. Zara, Renegade Recruiter: supports the Pirate creature type

ENCHANTMENT

1. Destructive Flow: offers a land destruction engine that can provide a large advantage in some decks
2. Efficient Construction: supports the Thopter creature type
3. Keldon Twilight: offers a creature destruction engine for aggressive decks
4. Lay Claim: replaces In Bolas's Clutches as a more expensive control spell
5. Might Makes Right: encourages large creatures and can be used in conjunction with sacrifice synergies as a creature destruction engine
6. Porphyry Nodes: offers a creature destruction engine for slower decks
7. Retreat to Kazandu: supports landfall synergies
8. Shivan Harvest: offers a land destruction engine and supports sacrifice synergies
9. Sunken Hope: offers a creature bounce engine for slower decks
10. Whirlwind of Thought: supports spellslinger synergies

LAND

1. Foundry of the Consuls: supports the Thopter creature type

INSTANT

1. Atarka's Command: commands have been added to Cumly Cube to provide interaction and versatility
2. Aura Mutation: quite similar to Artifact Mutation
3. Brokers Confluence: confluences have been added to Cumly Cube to provide interaction and versatility
4. Cabaretti Confluence: confluences have been added to Cumly Cube to provide interaction and versatility
5. Dromoka's Command: commands have been added to Cumly Cube to provide interaction and versatility
6. Kolaghan's Command: commands have been added to Cumly Cube to provide interaction and versatility
7. Lorehold Command: commands have been added to Cumly Cube to provide interaction and versatility
8. Maestros Charm: rounding out the charms in Cumly Cube to provide interaction and versatility
9. Maestros Confluence: confluences have been added to Cumly Cube to provide interaction and versatility
10. Obscura Charm: rounding out the charms in Cumly Cube to provide interaction and versatility
11. Obscura Confluence: confluences have been added to Cumly Cube to provide interaction and versatility
12. Ojutai's Command: commands have been added to Cumly Cube to provide interaction and versatility
13. Pulse of the Fields: supports lifegain synergies
14. Quandrix Command: commands have been added to Cumly Cube to provide interaction and versatility
15. Riveteers Charm: rounding out the charms in Cumly Cube to provide interaction and versatility
16. Silumgar's Command: commands have been added to Cumly Cube to provide interaction and versatility
17. Silverquill Command: commands have been added to Cumly Cube to provide interaction and versatility
18. Siren's Ruse: supports the Pirate creature type and blink synergies

PLANESWALKER

1. Saheeli, Filigree Master: supports the Thopter creature type
2. Vraska, Golgari Queen: supports sacrifice synergies

SORCERY

1. Renegade Tactics: replaces Accelerate as a less typical red card
2. Roar of the Crowd: encourages building around creature types
3. Temporary Insanity: stealing creatures is a small but important part of Cumly Cube
4. Witherbloom Command: commands have been added to Cumly Cube to provide interaction and versatility

jsnrice on Atraxa, Grand Unifier

8 months ago

Deck Title: Ascension Through Unity – Atraxa cEDH Food Chain

Commander

Atraxa, Grand Unifier
Color Identity: {B}{G}{U}{W}

---

Introduction

Welcome to Ascension Through Unity, a competitive EDH build centered around Atraxa, Grand Unifier, the ultimate value engine and a uniquely powerful commander that bridges midrange resilience with combo potential. This list leverages the raw card advantage of Atraxa’s ETB trigger to dig for win conditions, interaction, and fast mana — all while supporting a Food Chain combo core.

This deck is tuned for high-level pods and aims to win fast, interact precisely, and grind smart when necessary.

---

Win Conditions

Primary Wincon:
- Food Chain + Eternal Scourge / Misthollow Griffin / Flesh Duplicate
Infinite creature mana via Food Chain and one of the exile-recurring creatures.
→ Cast Atraxa, Grand Unifier, dig for Thassa's OracleGC or Tainted Pact / Demonic Consultation combo.

Backup Wincons:
- Thassa's OracleGC + Tainted Pact / Demonic Consultation
- Finale of Devastation for lethal with infinite mana
- Displacer Kitten combos with The One RingGC, Teferi, Time Raveler, or mana rocks for infinite value/actions

---

Notable Synergies

• Atraxa, Grand Unifier ETB + Displacer Kitten: Abuse blink triggers for maximum card filtering and pseudo-storm turns.
• Food Chain + Exile creatures: Efficient engine for infinite mana into Atraxa chains.
• Talion, the Kindly Lord + low-cost spell density = passive draw engine.
• Drannith MagistrateGC, Opposition AgentGC, Orcish Bowmasters: Stax elements that don’t disrupt our own lines.
• Archivist of Oghma, Esper Sentinel, Mystic Remora, Rhystic StudyGC: Passive card draw galore.

---

Staples and Interaction

This deck plays nearly every blue interaction spell you’d expect: - Free Countermagic: Force of WillGC, Force of Negation, Pact of Negation, Mindbreak Trap, Flusterstorm
- Removal: Swords to Plowshares, Abrupt Decay, Chain of Vapor, Toxic Deluge, Culling Ritual
- Tutors: Vampiric TutorGC, Demonic TutorGC, Worldly Tutor, Enlightened TutorGC, Imperial SealGC

And it runs every relevant fast mana: - Mana Crypt, Lotus Petal, Chrome MoxGC, Mox DiamondGC, Mox Opal, Mana VaultGC, Ancient TombGC

---

Why Atraxa?

While many commanders offer value, Atraxa’s Grand Unifier trigger is uniquely broken in a deck like this. With a proper build, she can hit: - A creature (e.g. Eternal Scourge, Deathrite Shaman)
- A non-creature spell (e.g. Demonic Consultation)
- An instant (e.g. Swan Song, An Offer You Can't Refuse)
- A sorcery (e.g. Finale of Devastation)
- An artifact (e.g. Sol Ring)
- An enchantment (e.g. Rhystic StudyGC)
- A planeswalker (e.g. Teferi, Time Raveler)

This makes Atraxa a one-card value engine that refills your hand and pivots you into a win turn with proper sequencing.

---

Power Level & Goals

This deck is firmly cEDH (power level 9.5–10). It’s built for pods where interaction is heavy, turns are fast, and wins are clean.

You’ll thrive if: - You can protect Atraxa, Grand Unifier for at least one trigger
- You pilot your combo lines efficiently
- You mulligan aggressively for interaction or ramp

---

Mulligan Strategy

Look for: - Turn 1–2 dorks/rocks + tutor
- Food Chain + exile creature opener
- Strong card draw pieces + interaction
- Always mull away clunky high-CMC hands

---

Weaknesses

• Susceptible to Drannith MagistrateGC (unless we remove it)
• Hate for graveyard/exile recursion (Rest in Peace, etc.)
• Heavy counterspell matchups if we stumble on mana

---

Closing Thoughts

Atraxa, Grand Unifier doesn’t just unify card types — she unifies power, control, and combo under one elegantly devastating package. Whether you’re tutoring with efficiency or slamming a turn 4 Food Chain win, this deck rewards mastery and punishes hesitation. Perfect for cEDH players who love versatility and inevitability.

---

Thanks for reading! Let me know if you want a sideboard package or metagame tweaks.

Andramalech on Favorite plane and why?

8 months ago

I have love for several different planes.

Mirrodin/Argentum - Karn is one of the oldest characters that I associate myself with, and I happen to really love who and what Karn has become to the world of MTG, since Urza (imo) after encapsulating his character, wasn't someone worth keeping up with. Karn seems timeless and like someone who can be revisited over and over again with new relevance. Mirrodin developed this great butterfly effect where "the actions you didn't even realize you were taking shaped an entire civilization in your absence."

Kamigawa - a typically over-looked plane and set respectfully due to how over-nerfed everything needed to be in Karn's power-hungry wake (i Joke). but some of my favorite characters like Tetsuo Umezawa can be associated to this plane. Not only that but the lineage traces and it just tethers so many different parts of magic together. I am infatuated with the original artwork for Sensei's Divining Top. Much like I am for Mox Opal.

Kiora - relatively un-discovered but I theorize that I could see some developement for Nekusar, the Mindrazer if they ever confirm his home-plane.

Muraganda - I love the general energy of the plane and after Aetherdrift recently, I want to revisit for more development.

Amonkhet - Hazoret is a total baddie and I'm still a bit heartbroken over the death of Oketra, but I like how the plane generally shapes out it's higher-tiered characters such as Hazoret, Oketra, Bontu, Ketramose, etc.

Balaam__ on The Antiques Roadshow

9 months ago

Ah thanks Cloudy2024, I guess it’s clear I haven’t revisited this one since Mox Opal was reinstated. I’ll have to think carefully on adding it since it’s über expensive, but maybe one or two would work well.

Cloudy2024 on The Antiques Roadshow

9 months ago

cool deck, well thought out , why not use newy unband Mox Opal to ramp? also Spell Pierce might be a good sideboard card. overall, i think this deck is heading in the right direction for a winner!

DungeonCrawler64 on Lurker of the Automation

10 months ago

I test-played a bit and I think I got the lands to work well!Hallowed Fountain seems to be a good land fix and much to my despair I think I have to remove The Ozolith to add one land in its place because the lands just were not consistent enough. (especially trying to get {U} {U}for a Counterspell, Sink into Stupor  ^Flip, or if I wanted to cast two {U} cost cards. (this is part of the reason why I chose Metallic Rebuke over Counterspell before I updated my deck because getting double blue seemed tougher. but I think seventeen lands plus the Mox Opal and Springleaf Drum are good and the manapool seems much more efficient. I decided to keep the Darksteel Citadel because for artifacts entering and on the board for affinity I seemed to notice a considerable difference if they were not artifact lands. the Steel Overseer seems to be pretty strong especially if I have a bunch of Ornithopter or Memnite then I can buff them and make them more of a threat. I also had the crazy idea of adding another copy of Shadowspear because of the +1+1, trample, and especially the lifelink if the game is longer and I needed it. however, I am not quite sold on the idea. I would love to have one copy of The Ozolith, but I am unsure what to remove. I am considering removing one of the three Kapa Cannoneers Or one of the two Emry, Lurker of the Loch. but I am just not confident about removing those cards that seem essential for this deck. ); would love to hear from you and thanks so much for helping kamarupa! without you, I got no clue what I would have done!

capwner on Opals are the new diamonds!

11 months ago

This mono blue build is interesting. I'd be curious to hear your thoughts on the advantages of this build over an Azorius version that can support Portable Hole, Dimir with Basim Ibn Ishaq, or izzet for Galvanic Blast? Metallic Rebuke seems like another very popular choice which you have omitted and I'm curious about this decision as well.

In my opinion, the biggest advantage of Mox Opal is its ability to colorfix in an archetype that uses several colorless lands, and of course the fast mana aspect. To get maximum payoff from these characteristics, you'd either want more interaction b/c you'll have that extra mana up more often. Or fatter, more resilient bombs you can cast 1-2 turns faster than normal. Kappa is great, but aside from this I think the top-end card options are rather limited in blue. I have been working on a hybrid affinity/ponza build that really pushes these ideas, if you'd like to check it out!