Toxrill, the Corrosive

Legendary Creature — Slug Horror

At the beginning of each end step, put a slime counter on each creature you don't control.

Creatures you don't control get -1/-1 for each slime counter on them.

Whenever a creature you don't control with a slime counter on it dies, create a 1/1 black slug creature token. (Dying is being put into the graveyard from the battlefield. Tokens enter the graveyard before they cease to exist.)

{U}{B}, Sacrifice a Slug: Draw a card.

Tokens

• Slug 1/1 B

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
Duel Commander	Legal
Freeform	Legal
Gladiator	Legal
Highlander	Legal
Historic	Legal
Historic Brawl	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Modern	Legal
Modern Beyond Horizons	Legal
Oathbreaker	Legal
Pioneer	Legal
Planar Constructed	Legal
Planechase	Legal
Quest Magic	Legal
Vanguard	Legal
Vintage	Legal

Discussion (28)

Stardragon on Custom set help

1 week ago

legendofa I'm thinking of esper slugs with a -1/-1 theme/ slime counter death trigger theme basically Toxrill, the Corrosive as the tribe mechanic Hell with the omenpaths Toxrill could be the commander lol

trippy_mcfly on Cumly Cube

3 months ago

Introducing Cumly Cube 1.3! Two years ago, Cumly Cube was updated to Cumly Cube 1.2, creating a balanced cube and wonderful play experience for all involved. Despite these changes, there remained some minor flaws in the card pool. I am now pleased to announce that, after extensive research and design, Cumly Cube has reached a final form. No card is too powerful. No card is too weak. Synergy is abundant. Both the draft and play experiences are dynamic, exciting, and new. There will be no more major updates to Cumly Cube 1.

120 cards have been removed, and 120 cards have been added. Here are the changes, provided with brief justifications:

REMOVED:

ARTIFACT

1. Everflowing Chalice: mana rocks should cost 3 or have a drawback
2. Glass of the Guildpact: too weak
3. Heraldic Banner: encouraged mono-colored decks
4. Illuminated Folio: too weak
5. Jayemdae Tome: too weak
6. Loreseeker's Stone: too weak
7. Mind Stone: mana rocks should cost 3 or have a drawback
8. Null Rod: too much of a hate card
9. Pithing Needle: too powerful with Urza's Saga
10. Pyromancer's Goggles: too narrow
11. Retrofitter Foundry: too powerful with Urza's Saga

CREATURE

1. Bomat Courier: too powerful against slow starts
2. Deathpact Angel: creates a Cleric token, not a supported creature type
3. Dimir Cutpurse: too powerful
4. Elves of Deep Shadow: too obvious of a choice as a cumly
5. Golos, Tireless Pilgrim: too powerful
6. Hostage Taker: too powerful
7. Kalamax, the Stormsire: too powerful
8. Loyal Retainers: too obvious of a choice as a cumly
9. Monastery Mentor: too powerful
10. Moonveil Dragon: pumping the team makes for anticlimactic endings
11. Murktide Regent: we’ve seen enough of this card already in other formats
12. Ornithopter of Paradise: too obvious of a choice as a cumly
13. Phantom Tiger: too weak
14. Risen Reef: too powerful
15. Shadrix Silverquill: creates Inkling tokens, not a supported creature type
16. Tatyova, Benthic Druid: too powerful
17. Thraben Inspector: we’ve seen enough of this card already in other formats
18. Toxrill, the Corrosive: creates Slug tokens, not a supported creature type

ENCHANTMENT

1. Alpha Authority: hexproof makes for less interesting games
2. Favorable Winds: too weak
3. Offspring's Revenge: too narrow
4. Pernicious Deed: too powerful of a board wipe
5. Rally the Ranks: too weak
6. Song of Freyalise: too typical a card for green

LAND (types are grouped together in this list)

1. Tolarian Academy: too powerful
2. Arid Mesa: mana-fixing should not be so easy in Cumly Cube
3. Bloodstained Mire: mana-fixing should not be so easy in Cumly Cube
4. Flooded Strand: mana-fixing should not be so easy in Cumly Cube
5. Marsh Flats: mana-fixing should not be so easy in Cumly Cube
6. Misty Rainforest: mana-fixing should not be so easy in Cumly Cube
7. Polluted Delta: mana-fixing should not be so easy in Cumly Cube
8. Scalding Tarn: mana-fixing should not be so easy in Cumly Cube
9. Verdant Catacombs: mana-fixing should not be so easy in Cumly Cube
10. Windswept Heath: mana-fixing should not be so easy in Cumly Cube
11. Wooded Foothills: mana-fixing should not be so easy in Cumly Cube
12. Badlands: mana-fixing should not be so easy in Cumly Cube
13. Bayou: mana-fixing should not be so easy in Cumly Cube
14. Plateau: mana-fixing should not be so easy in Cumly Cube
15. Savannah: mana-fixing should not be so easy in Cumly Cube
16. Scrubland: mana-fixing should not be so easy in Cumly Cube
17. Taiga: mana-fixing should not be so easy in Cumly Cube
18. Tropical Island: mana-fixing should not be so easy in Cumly Cube
19. Tundra: mana-fixing should not be so easy in Cumly Cube
20. Underground Sea: mana-fixing should not be so easy in Cumly Cube
21. Volcanic Island: mana-fixing should not be so easy in Cumly Cube
22. Hissing Quagmire: creature lands are too versatile and discourage disciplined drafting
23. Lavaclaw Reaches: creature lands are too versatile and discourage disciplined drafting
24. Lumbering Falls: creature lands are too versatile and discourage disciplined drafting
25. Shambling Vent: creature lands are too versatile and discourage disciplined drafting
26. Needle Spires: creature lands are too versatile and discourage disciplined drafting
27. Raging Ravine: creature lands are too versatile and discourage disciplined drafting
28. Stirring Wildwood: creature lands are too versatile and discourage disciplined drafting
29. Wandering Fumarole: creature lands are too versatile and discourage disciplined drafting

INSTANT

1. Abnormal Endurance: too typical a card for black
2. Aerial Predation: too narrow
3. Alchemist's Gift: too weak
4. Arbor Armament: too weak
5. Autumn's Veil: too narrow
6. Betrayal of Flesh: too weak
7. Bladebrand: too typical a card for black
8. Brainstorm: we’ve seen enough of this card already in other formats
9. Cathartic Pyre: too much utility for an instant
10. Comet Storm: one-sided board wipes need to be focused on creature type
11. Consider: too typical a card for blue
12. Crippling Chill: too typical a card for blue
13. Crush: spot artifact removal is not to be part of Cumly Cube
14. Dawn Charm: other cards in Cumly Cube fill this role better
15. Dive Down: hexproof makes for less interesting games
16. Divine Offering: spot artifact removal is not to be part of Cumly Cube
17. Dragon's Fire: too typical a card for red
18. Electrify: too typical a card for red
19. Fell the Pheasant: too narrow
20. Gainsay: too narrow
21. Gut Shot: too weak
22. Heroic Intervention: other cards in Cumly Cube fill this role better
23. Hold the Line: too narrow
24. Into the Core: spot artifact removal is not to be part of Cumly Cube
25. Lash of Thorns: too weak
26. Make Your Mark: too weak
27. Opt: too typical a card for blue
28. Overload: spot artifact removal is not to be part of Cumly Cube
29. Pitfall Trap: too narrow
30. Repulse: too typical a card for blue
31. Scrap: spot artifact removal is not to be part of Cumly Cube
32. Seedtime: too narrow
33. Shatter: spot artifact removal is not to be part of Cumly Cube
34. Smash: spot artifact removal is not to be part of Cumly Cube
35. Smashing Success: spot artifact removal is not to be part of Cumly Cube
36. Smite: too narrow
37. Turn to Frog: turns a creature into a Frog, not a supported creature type
38. Unsummon: other cards in Cumly Cube fill this role better

SORCERY

1. Blasphemous Act: too typical a card for red
2. Chart a Course: too much utility
3. Cleansing Wildfire: too much utility
4. Cultivate: too typical a card for green
5. Disentomb: too typical a card for black
6. From the Ashes: too narrow
7. Funeral Rites: too much utility
8. Gitaxian Probe: too typical a card for blue
9. Necromantic Summons: too typical a card for black
10. Nighthaze: other cards in Cumly Cube fill this role better
11. Persist: too typical a card for black
12. Pirate's Prize: too much utility
13. Ponder: too much utility
14. Reanimate: too typical a card for black
15. Recover: other cards in Cumly Cube fill this role better
16. Serum Visions: too typical a card for blue
17. Spitting Earth: too typical a card for red
18. Thoughtcast: too typical a card for blue

ADDED:

ARTIFACT

1. Coat of Arms: encourages building around creature types
2. Patchwork Banner: encourages building around creature types

CREATURE

1. Arahbo, the First Fang: supports the Avatar and Cat creature types
2. Avatar of the Resolute: supports the Avatar creature type
3. Autonomous Assembler: supports the Assembly-worker creature type
4. Bag End Porter: supports the Dwarf creature type
5. Breya, Etherium Shaper: supports the Human and Thopter creature types
6. Captain Storm, Cosmium Raider: supports the Human and Pirate creature types
7. Captivating Unicorn: supports the Unicorn creature type and supports enchantment decks
8. Centaur Battlemaster: supports the Centaur creature type and functions as a strong payoff for prowess decks
9. Chronicler of Heroes: supports the Centaur creature type
10. Conclave Cavalier: supports the Centaur and Elf creature types
11. Conclave Mentor: supports the Centaur creature type
12. Crosis, the Purger: supports the Dragon creature type
13. Fear of Exposure: supports the Nightmare creature type and supports enchantment decks
14. Ghostly Changeling: supports all creature synergy decks
15. Gimli of the Glittering Caves: supports the Dwarf creature type
16. Glissa Sunseeker: supports the Elf creature type
17. Graveshifter: supports all creature synergy decks
18. Gwenna, Eyes of Gaea: supports the Elf creature type
19. Haunt of the Dead Marshes: supports the Elf and Nightmare creature types
20. He Who Hungers: supports the Spirit creature type
21. Heedless One: supports the Avatar and Elf creature types
22. Jungle Creeper: supports the Elemental creature type
23. Jungle Delver: supports the Merfolk creature type
24. Kataki, War's Wage: supports the Spirit creature type and functions as artifact hate
25. Keiga, the Tide Star: supports the Dragon and Spirit creature types
26. Kiora's Follower: supports the Merfolk creature type
27. Kumena, Tyrant of Orazca: supports the Merfolk creature type
28. Lagonna-Band Trailblazer: supports the Centaur creature type
29. Marwyn, the Nurturer: supports the Elf creature type
30. Master Skald: supports the Dwarf creature type
31. Mine Layer: supports the Dwarf creature type
32. Neighborhood Guardian: supports the Unicorn creature type
33. Promised Kannushi: supports the Human and Spirit creature types
34. Realmwalker: supports all creature synergy decks
35. Reveka, Wizard Savant: supports the Dwarf creature type
36. Seraphic Steed: supports the Angel and Unicorn creature types
37. Soul of Zendikar: supports the Avatar and Beast creature types
38. Steadfast Unicorn: supports the Unicorn creature type
39. Stingmoggie: supports the Elemental creature type and functions as artifact hate
40. Sygg, River Cutthroat: supports the Merfolk creature type
41. Vineshaper Mystic: supports the Merfolk creature type
42. Wistful Selkie: supports the Merfolk creature type
43. Yargle and Multani: supports the Elemental and Spirit creature types
44. Zacama, Primal Calamity: supports the Dinosaur creature type

ENCHANTMENT

1. Aura of Silence: functions as artifact and enchantment hate
2. Aura ShardsGC: functions as artifact and enchantment hate
3. Blessed Sanctuary: supports the Unicorn creature type
4. Corrosion: functions as artifact hate
5. Embargo: interesting prison piece for stasis decks
6. Font of Fortunes: card advantage at a fair price for Cumly Cube
7. Gate to Phyrexia: functions as artifact hate and supports the niche but possible sacrifice deck
8. Impending Disaster: a useful piece for aggressive decks or niche graveyard decks
9. Shared Animosity: supports all creature synergy decks

LAND (types are grouped together in this list)

1. Drowned Catacomb: completing the full set of check lands
2. Glacial Fortress: completing the full set of check lands
3. Hinterland Harbor: completing the full set of check lands
4. Sulfur Falls: completing the full set of check lands
5. Cascade Bluffs: completing the full set of filter lands
6. Graven Cairns: completing the full set of filter lands
7. Mystic Gate: completing the full set of filter lands
8. Sunken Ruins: completing the full set of filter lands
9. Wooded Bastion: completing the full set of filter lands
10. Darkwater Catacombs: completing the full set of Odyssey filter lands
11. Desolate Mire: completing the full set of Odyssey filter lands
12. Ferrous Lake: completing the full set of Odyssey filter lands
13. Fire-Lit Thicket: completing the full set of Odyssey filter lands
14. Flooded Grove: completing the full set of Odyssey filter lands
15. Overflowing Basin: completing the full set of Odyssey filter lands
16. Skycloud Expanse: completing the full set of Odyssey filter lands
17. Sunscorched Divide: completing the full set of Odyssey filter lands
18. Viridescent Bog: completing the full set of Odyssey filter lands

INSTANT

1. Accelerate: supports prowess decks
2. And They Shall Know No Fear: supports all creature synergy decks
3. Artifact Mutation: functions as artifact hate and supports the Saproling creature type
4. Bandage: supports prowess decks and is also funny
5. Brokers Charm: charms are an important part of Cumly Cube
6. Charge Through: supports prowess decks
7. Cremate: supports prowess decks
8. Mirrodin Avenged: supports prowess decks
9. Poison the Blade: supports prowess decks and offers deathtouch in green instead of its typical color, black
10. Pressure Point: supportsli prowess decks and offers tapping in white instead of its typical color, blue
11. Steady Progress: supports prowess decks as well as slower proliferate decks
12. Sugar Rush: supports prowess decks and offers power boost in black instead of its typical color, red
13. Treacherous Greed: supports the niche but possible sacrifice deck
14. Turf Wound: a strange tempo card that fits the ethos of Cumly Cube
15. Warriors' Lesson: supports prowess decks and might end up as green Ancestral Recall

SORCERY

1. Altar of Bone: supports the niche but possible sacrifice deck
2. Aphetto Dredging: supports all creature synergy decks
3. Apocalypse: total game resets are an important part of Cumly Cube, because you end up playing more Cumly Cube!
4. Ashen Powder: a more situational and odd piece for reanimator decks
5. Blood for Bones: a more situational and odd piece for reanimator decks
6. Breath of Life: offers reanimation in white instead of its typical color, black
7. Broken Bond: functions as artifact and enchantment hate yet also ramps
8. Channel the Suns: a strange yet useful mana-fixer. Out with fetch lands, in with sorcery WUBRG!
9. Cloak of Feathers: supports prowess decks
10. Crippling Fear: supports all creature synergy decks
11. False Dawn: supports prowess decks and might offer mana-fixing in niche situations? Even if this card is pretty useless, it screams Cumly Cube
12. Grim Tutor: tutoring is a small part of Cumly Cube but very important in the right decks
13. Growth Spasm: offers ramp, mana-fixing, and supports the Eldrazi creature type
14. Hymn of Rebirth: offers reanimation in green and white instead of its typical color, black
15. Ice Storm: land destruction is a small part of Cumly Cube but a necessary balance, and not usually in green
16. Jace's Triumph: there are Jace planeswalkers in Cumly Cube
17. Mana Vapors: a strange tempo card that fits the ethos of Cumly Cube
18. Many Partings: offers mana-fixing and food
19. Migratory Route: offers mana-fixing and supports the Bird creature type
20. Obzedat's Aid: offers reanimation in black and white
21. Ordered Migration: supports the Bird creature type
22. Raise the Palisade: supports all creature synergy decks
23. Resourceful Return: a more situational and odd piece for black graveyard decks and artifact decks
24. Ribbons of Night: offers direct damage in black instead of its typical color, red
25. Rise of the Witch-king: a more situational and odd piece for reanimator decks
26. Riveteers Confluence: similar to a charm
27. Safewright Quest: offers slight mana-fixing in green and white
28. Solve the Equation: tutoring is a small part of Cumly Cube but very important in the right decks
29. Sweep the Skies: supports the Thopter creature type
30. Temporal Machinations: supports artifact decks
31. Unnatural Restoration: supports proliferate decks
32. Urborg Repossession: a more situational and odd piece for black graveyard decks

Flarhoon13 on Aminatou's Adventures in babysitting the Gatewatch

10 months ago

May 3, 2024 I started a new quest. Having built 52 decks, I endeavoured to play them all, in roughly the same order as I created them.

July 19

Aminatou's Adventures in babysitting the Gatewatch loss brings the record to 14-21-1. Deepglow Skate was countered, preventing a Jace, Unraveler of Secrets' ultimate. Francois' Toxrill, the Corrosive deck won quickly via Bolas's Citadel and Sensei's Divining Top, defeating Cody's amazing Heliod, the Radiant Dawn  ^Flip deck, too. Win percentage drops to .400

Bookrook on What makes a card or …

11 months ago

I think that a toxic deck is anything that generally makes their deck unable to do anything their deck likes to do. So a Maha, Its Feathers Night or a Toxrill, the Corrosive deck might be toxic to a creature reliant stompy deck, but not to a spellslinger deck. Even my Beamtown Bullies deck thinks every deck that plays Leyline of the void is toxic. However, I believe that there are some cards that are generally toxic to all decks, such as grand arbiter Augustin 4, or Nekusar, the Mindrazer.

Noxid05 on Top ten most toxic commanders.

11 months ago

Good list, but Atraxa, Praetors' Voice I feel needs an asterisk as +1/+1 counters builds or even super friends aren't nearly as toxic to play against as infect.

Personally, I think Narset, Enlightened Master deserves a spot on the list, just free casting extra turn, and extra combat steps repeatedly.

I also think there could be a debate for Toxrill, the Corrosive on this list

jawz on GBr Rigging Alara

1 year ago

I'm having a lot more fun with this deck than I thought I would. Super janky though. Far too helpless in the first couple turns. But if it hits on turn 4 or 5 it's got real juice.

Tinkered with it a bit. Virtue of Persistence and Toxrill, the Corrosive feel a bit disappointing when I hit them from an Etali or a Rigging. They're weak as control cards too so I felt like swapping in Chaotic Transformation that is also a weak control card but is better at using the underwhelming Insect or Blood tokens from Old Rutstein (and hitting a Portal to Phyrexia from transforming a blood token is a much better control payoff than Toxrill). I almost want two Transformations in the deck but I have a nagging feeling that Gix's Command is important and I don't want to cut one of the other permanents for it.

Liliana of the Veil feels a bit better as a control card. Usually I don't want to discard a card unless I have a Portal in play, but if I have the option of transforming Lili into a Nissa later I can stomach passing without using her abilities for a while if I don't want the discard.

I'm also testing out one Anzrag, the Quake-Mole. It also enables the Rigging trigger on cheap mana, and it's a unique angle of threat that can get bonus Rigging tokens enabled. Olivia, Crimson Bride likes Anzrag too. Atraxa loves getting extra attacks. But even with all that if it's stuck on its own it doesn't have an ability that gets you unstuck like a Sheoldred or a Bramble Familiar or even a Shakedown Heavy can. Could easily be not good enough. The caves work really well. Playing the Invasion of Alara  ^Flip or hard casting the Atraxa is a bit hard but still consistent if you plan out your land plays carefully. Swapped out a couple Promising Vein for the Volatile Fault as the treasures are better for the deck than the basic land, and the extra ability to kill an opponent's man land is something that the deck might as well have as an option.

But overall this deck just wants to pull off a big Rigging play and then bully the opponent from there as hard as it can. If you need more than spot control to own the combats might as well concede.

rravvenn on Hapatra Queen of negative counters

1 year ago

Why isn’t Toxrill, the Corrosive in this deck?

UltimateRoxas40 on Horrors and Nightmares

2 years ago

Looks fun! I've got a similar Dimir Horror/Mill deck, though mine is helmed by Captain N'ghathrod. I'm thinking about how to include Umbris, Fear Manifest in my own deck currently, since he has some fun effects and great flavor.

And you can actually substitute Everflowing Chalice in place of Mana Crypt for that infinite colorless mana combo, which you've already got in your deck. Just tap Sol Ring for {2}, cast the Chalice for {0}, then bounce the Ring, then cast it for {1}, bounce the Chalice, etc, netting you {1} colorless mana each time. No Mana Crypt required haha.

And he is a little pricey, but Toxrill, the Corrosive is a great finisher in these kinds of decks, and has a powerful synergy with Sludge Monster. With both on the field, you can turn all your opponent's non-Horror creatures into 2/2 (effectively 1/1's after the Slime counter's -1/-1 effect happens). You can effectively soft-lock your opponent's board, as very few of their creatures will stick around long enough to be impactful.