Professor Onyx
Legendary Planeswalker — Liliana$4.88
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.
Legal in Commander
Is
Does
Rewards
Combos 4
Professor Onyx + Chain of Smog
- Infinite lifegain
- Infinite lifegain triggers
- Infinite lifeloss
Commander Spellbook ↗How it works
Steps
Cast Chain of Smog by paying {1}{B}, targeting yourself. Professor Onyx triggers, causing each opponent to lose 2 life and you to gain 2 life. Resolve Chain of Smog, discarding two cards if possible, then copying the spell without choosing a new target. Repeat from step 2.
Professor Onyx + Fury Storm
- Infinite lifegain
- Infinite lifegain triggers
- Infinite lifeloss
Commander Spellbook ↗How it works
Before you start
You have cast your commander from your command zone this game. An additional instant or sorcery in hand with the mana to cast it, or an opponent has cast an as of yet unresolved instant or sorcery spell.
Steps
Cast your additional instant or sorcery spell, or wait for an opponent to cast one. Professor Onyx triggers, losing each opponent two life and gaining you 2 life. Cast Fury Storm targeting the instant or sorcery spell. Professor Onyx triggers, losing each opponent two life and gaining you 2 life. Fury Storm triggers, copying itself for each time you have cast your commander from your command zone this game and choosing the original copy of Fury Storm as the target. Professor Onyx triggers for each copy, losing each opponent two life and gaining you 2 life each time. Resolve a Fury Storm copy, copying Fury Storm and choosing the original Fury Storm as the target. Professor Onyx triggers, losing each opponent two life and gaining you 2 life. Repeat from step 7.
Professor Onyx + Chain of Acid
- Infinite lifegain
- Infinite lifegain triggers
- Infinite lifeloss
Commander Spellbook ↗How it works
Before you start
You control an indestructible noncreature permanent.
Steps
Cast Chain of Acid for {3}{G} targeting an indestructible noncreature permanent you control. Professor Onyx triggers, causing each opponent to lose 2 life and you to gain 2 life. Resolve Chain of Acid, failing to destroy the target and copying Chain of Acid targeting the same permanent. Repeat from step 2.
Professor Onyx + Guile + Temporal Extortion
- Infinite lifegain triggers
- Infinite lifeloss
Commander Spellbook ↗How it works
Before you start
Your life total is at least 2.
Steps
Cast Temporal Extortion by paying {B}{B}{B}{B}. Temporal Extortion and Professor Onyx trigger. Resolve the Temporal Extortion trigger, causing you to pay half your life total, rounded up, and then exile Temporal Extortion and cast it without paying its mana cost due to Guile. Repeat from step 2 until your life total is four or less. Temporal Extortion and Professor Onyx trigger. Resolve the Professor Onyx trigger, causing you to gain two life and each opponent to lose 2 life. Resolve the Temporal Extortion trigger, causing you to pay half your life total, rounded up, and then exile Temporal Extortion and cast it without paying its mana cost due to Guile. Repeat from step 5.
Combo data from Commander Spellbook. Only combos of 2 or 3 named cards are listed.
Best commanders
Commanders whose abilities work with this card and share its colors, from what the cards do.
- Moseo, Vein's New DeanProfessor Onyx fills your graveyard, which Moseo, Vein's New Dean can use because it reanimates creatures.
- Betor, Ancestor's VoiceProfessor Onyx fills your graveyard, which Betor, Ancestor's Voice can use because it reanimates creatures.
- Rodolf DuskbringerProfessor Onyx fills your graveyard, which Rodolf Duskbringer can use because it reanimates creatures.
- Emet-Selch of the Third SeatProfessor Onyx fills your graveyard, which Emet-Selch of the Third Seat can use because it casts cards from your graveyard.
- Carnage, Crimson ChaosProfessor Onyx fills your graveyard, which Carnage, Crimson Chaos can use because it casts cards from your graveyard.
- Sefris of the Hidden WaysProfessor Onyx fills your graveyard, which Sefris of the Hidden Ways can use because it counts cards in your graveyard.
- Tergrid, God of Fright // Tergrid's LanternProfessor Onyx fills your graveyard, which Tergrid, God of Fright // Tergrid's Lantern can use because it returns permanents from your graveyard.
- Oskar, Rubbish ReclaimerProfessor Onyx fills your graveyard, which Oskar, Rubbish Reclaimer can use because it casts cards from your graveyard.
- Karador, Ghost ChieftainProfessor Onyx fills your graveyard, which Karador, Ghost Chieftain can use because it casts cards from your graveyard.
- Hogaak, Arisen NecropolisProfessor Onyx fills your graveyard, which Hogaak, Arisen Necropolis can use because it casts cards from your graveyard.