Professor Onyx

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Format Legality
1v1 Commander Legal
Alchemy Legal
Arena Legal
Block Constructed Legal
Brawl Legal
Canadian Highlander Legal
Casual Legal
Commander / EDH Legal
Commander: Rule 0 Legal
Custom Legal
Duel Commander Legal
Gladiator Legal
Highlander Legal
Historic Legal
Legacy Legal
Leviathan Legal
Limited Legal
Modern Legal
Oathbreaker Legal
Pioneer Legal
Pre-release Legal
Standard Legal
Vintage Legal

Professor Onyx

Legendary Planeswalker — Liliana

Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life.

+1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

-3: Each opponent sacrifices a creature with the greatest power among creatures that player controls.

-8: Each opponent may discard a card. If they don't they lose 3 life. Repeat this process six more times.

Tae_Grixis on Oathbreaker Tier List

1 week ago

Keep this going. What about Professor Onyx?

H-E-N-R-Y on Chatterfang

1 month ago

I like where you're going with this. You've got some key pieces and some cool synergy that really feels like it would be fun to play!

While I was looking over your decklist I noticed that you have a lot of really good cards in here, and I feel like you could focus your card draw a little more to really step up the momentum of your deck. I've got a few swaps I think would help the momentum of your deck:

I think the chances of you drawing a creature card with Adventure Awaits is kind of low to be called consistent. I think it would be much more likely that you would have a lot of creatures in play
I think Bitter Revelations has a pretty steap CMC for how many cards it gives you, I think Shamanic Revelations could give you way more cards for just one more mana
Professor Onyx is a great card, and she is a little out of place in this deck other than just filling some great control at a huge CMC. I think Freyalise would still give you some control, give you some tokens, ramp, and card draw all in one 5 mana drop
Hard call but the consistent low cost of Mind's Eye makes it powerful swap if you're willing to pay the 5 cost upfront. Usually people are playing EDH in 4 person games and that means it's pretty much a draw 1 for 1 on a stick.

These are all just ideas and the deck is already pretty fun without them!

Keep up the good work, -H-E-N-R-Y

elliotmward97 on Zevlor, The Spellslinger

2 months ago

Would Professor Onyx make it in ?

legendofa on New hubs to be added

3 months ago

Opening for discussion:

Kaleidoscope can be added to the Format list. I don't have the admin rights to do that, but I can petition yeaGO or someone to add it. I don't know how popular it is, but the Formats list has all kinds of things I've never heard of.

I think Horde Magic should be moved from a hub to a format. It is a unique format with specific rules, and I believe it's more appropriate there than in the archetype/strategy section.

Life Drain can be added as a hub. The description may be tweaked a little further, but is currently "a lifegain strategy that seeks to win by incrementally and simultaneously increasing its own life total and lowering the opponents' with cards such as Professor Onyx and Ayara, First of Locthwain."

Spell Copy is getting added to the long list. I'm not sure it has the autonomy to be hubbed just yet, but its presence is growing.

Having hubs for both Vehicle and Crew is currently redundant. One is a keyword mechanic, and one is a card subtype. I propose closing the Crew hub and letting Vehicles hold that space.

Is there enough presence for Modified? It seems very niche, a noticeable number of cards come from a single COmander precon, and it's largely covered by Counters, Auras, and Equipment. For now, I don't think it needs a distinct hub; I think it's basically be synonymous with Chishiro, the Shattered Blade Commander. Am I wrong in this?

The Streets of New Capenna abilities Alliance, Connive, Blitz, and Casualty will be added as ability options.

As always, I welcome any feedback, suggestions, or other thoughts.

Dete on Kess EDH

3 months ago
Young Pyromancer => Sedgemoor Witch si es q poni chain of smog obvio

Jace's Sanctum ya teni otros 3 q hacen reduccion, hasta sacaria 1 mas

Thousand-Year Storm real es la raja pero demasiado setup, mejor poner Bonus Round

Mana Geyser/Jeska's Will muy pocas cosas con rojo

muchas weas muchas weas, lo intente ordenar lo mejor posible y probalemente se puedan sacar hasrtas cartas mas

Safaris on Liliana, Heretical Stealer

6 months ago

You might look at Chain of Smog. The discard is fine on its own and with Professor Onyx you instant win by targeting yourself.

zAzen7977 on Always Standard Discard

8 months ago

Hey legendofa, I’m right there with you regarding the lack of good discard interactions in standard. But I think it can work in Mono-Black. Check out what I’ve been working on, I recently updated it:


In my build I run no creature or hand exile effects, since those effects are non-bo’s with Tergrid. We want to be able to keep the stuff we force the opponent to discard and ‘sac. Plus I think you could run more 1-drops on the mainboard, like Dread Fugue and Bloodchief's Thirst.

Acquisitions Expert is strictly better than Elderfang Disciple since both hit 1 card of the opponent’s choice, but the Expert has 1 additional toughness.

Also, Professor Onyx is a good option for a finisher, since her ultimate can do up to 18 damage to the opponent, depending on how empty the opponent’s hand is. And she really synergizes well with Tergrid!


11 months ago

I’m at a control player at heart (I knew I’m an awful person) so when I came across the decklist I was happy! First I’ll do some suggestions (I’m assuming you know about cards such as Demonic Tutor so I’m not going to mention cards like those). The first thing I noticed was that Professor Onyx was in the list, so why not make her an infinite combo with Chain of Smog. Another suggestion would be Toxic Deluge as it works especially well in this deck because of the commander’s ability. Finally, perhaps adding Stasis to really slow things down (once again I acknowledge I am a bad person).

Now for some cuts. The first cards that stood out to me were Ghostly Prison and Propaganda. I feel that these cards are weak for the power level you’re aiming for as the higher power level, the less combat damage matters. Another card would be Hero's Downfall. I’m not a huge fan of this card as it feels clunky. Maybe replace it with Deadly Rollick.

Those are a few suggestion! Take them or leave them.

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