Mikaeus, the Unhallowed + Yawgmoth, Thran Physician Combos

4 known combos featuring both cards in Commander

Infinite card draw Near-infinite death triggers Near-infinite ETB Near-infinite lifegain Near-infinite lifegain triggers

Combo 1 with Gray Merchant of Asphodel

Results: Infinite card draw · Infinite draw triggers · Near-infinite death triggers · Near-infinite ETB · Near-infinite lifegain · Near-infinite lifegain triggers · Near-infinite lifeloss · Near-infinite LTB · Near-infinite sacrifice triggers
Steps
  1. Activate Yawgmoth by paying 1 life and sacrificing Gray Merchant, targeting any other nontoken non-Human creature you control.
  2. Gray Merchant dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Gray Merchant enters the battlefield, causing each opponent to lose life equal to your devotion to black, and causing you to gain life equal to the life lost this way.
  4. Resolve the Yawgmoth ability from step 1, putting a -1/-1 counter on the additional creature and causing you to draw a card.
  5. Activate Yawgmoth by paying 1 life and sacrificing the additional creature, targeting Gray Merchant.
  6. The creature dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  7. Resolve the Yawgmoth ability, putting a -1/-1 counter on Gray Merchant and causing you to draw a card.
  8. Repeat.
13,486 decks Colorless View on Commander Spellbook →

Combo 2 with Ayara, First of Locthwain

Results: Infinite card draw · Infinite draw triggers · Near-infinite ETB · Near-infinite LTB · Near-infinite death triggers · Near-infinite lifegain · Near-infinite lifegain triggers · Near-infinite lifeloss · Near-infinite sacrifice triggers
Show steps
  1. Activate Yawgmoth by paying 1 life and sacrificing Ayara, targeting any other nontoken non-Human creature you control.
  2. Ayara dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Ayara enters the battlefield, causing each opponent to lose 1 life and you to gain 1 life.
  4. Resolve the Yawgmoth ability from step 1, putting a -1/-1 counter on the additional creature and causing you to draw a card.
  5. Activate Yawgmoth by paying 1 life and sacrificing the additional creature, targeting Ayara.
  6. The creature dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  7. If the creature was black, it enters the battlefield, triggering Ayara, causing each opponent to lose 1 life and you to gain 1 life.
  8. Resolve the Yawgmoth ability, putting a -1/-1 counter on Ayara and causing you to draw a card.
  9. Repeat.
7,476 decks Colorless View on Commander Spellbook →

Combo 3 with Kokusho, the Evening Star

Results: Infinite card draw · Near-infinite lifegain · Near-infinite lifeloss · Near-infinite lifegain triggers · Near-infinite ETB · Near-infinite LTB · Near-infinite death triggers · Near-infinite sacrifice triggers
Show steps
  1. Activate Yawgmoth by paying 1 life and sacrificing Kokusho, targeting any other nontoken non-Human creature you control with toughness two or greater.
  2. Kokusho dies, triggering it and its undying ability.
  3. Resolve Kokusho's undying trigger, returning it from the graveyard to the battlefield with a +1/+1 counter.
  4. Resolve Kokusho's trigger, causing each opponent to lose 5 life, and causing you to gain life equal to the life lost this way.
  5. Resolve the Yawgmoth ability from step 1, putting a -1/-1 counter on the additional creature and causing you to draw a card.
  6. Activate Yawgmoth by paying 1 life and sacrificing the additional creature, targeting Kokusho.
  7. The creature dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  8. Resolve the Yawgmoth ability, putting a -1/-1 counter on Kokusho and causing you to draw a card.
  9. Repeat.
4,539 decks Colorless View on Commander Spellbook →

Combo 4 with Thragtusk

Also requires: Thragtusk Thragtusk
Results: Infinite card draw · Infinite draw triggers · Near-infinite -1/-1 counters · Near-infinite death triggers · Near-infinite ETB · Near-infinite lifegain · Near-infinite lifegain triggers · Near-infinite LTB · Near-infinite sacrifice triggers
Show steps
  1. Activate Yawgmoth's first ability by paying 1 life and sacrificing Thragtusk.
  2. Thragtusk dies, triggering its second ability and its undying ability.
  3. Resolve the first Thragtusk trigger, creating a 3/3 Beast creature token.
  4. Resolve the second Thragtusk trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  5. Thragtusk enters the battlefield, causing you to gain five life.
  6. Resolve the Yawgmoth ability from step 1, putting a -1/-1 counter on a creature and causing you to draw a card.
  7. Activate Yawgmoth by paying 1 life and sacrificing the Beast token, putting a -1/-1 counter on Thragtusk and causing you to draw a card.
  8. Repeat.
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