Altar of Dementia + Wilhelt, the Rotcleaver Combos

4 known combos featuring both cards in Commander

Infinite death triggers Infinite ETB Infinite LTB Infinite mill Infinite sacrifice triggers

Combo 1 with Poppet Stitcher // Poppet Factory

Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Steps
  1. Activate Altar of Dementia by sacrificing a Zombie creature.
  2. Wilhelt triggers, creating a 3/3 Zombie token with no abilities due to Poppet Factory.
  3. Resolve the ability from step 1.
  4. Repeat.
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Combo 2 with Shambling Ghast + Chthonian Nightmare + Pitiless Plunderer

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill · Infinite storm count · Infinite energy counters
Show steps
  1. Activate Altar of Dementia by sacrificing Shambling Ghast.
  2. When Shambling Ghast dies, it, Pitiless Plunderer and Wilhelt's first ability trigger.
  3. Resolve the Shambling Ghast and Pitiless Plunderer triggers, creating two Treasure tokens.
  4. Resolve the Wilhelt trigger, creating a 2/2 Zombie creature token with decayed.
  5. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Shambling Ghast's power.
  6. Activate the Treasures by tapping and sacrificing them, adding {1}{B}.
  7. Cast Chthonian Nightmare by paying {1}{B}.
  8. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get {E}{E}{E}.
  9. Activate Chthonian Nightmare by paying {E}, sacrificing the Zombie token, and returning Chthonian Nightmare from the battlefield to your hand, returning Shambling Ghast from your graveyard to the battlefield.
  10. Repeat.

Combo 3 with Myrkul, Lord of Bones + Dress Down

Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Show steps
  1. Activate Altar of Dementia by sacrificing Wilhelt.
  2. When Wilhelt dies, Myrkul triggers, exiling Wilhelt from your graveyard and creating a token copy of Wilhelt that is an enchantment.
  3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Wilhelt's power.
  4. Cast Dress Down by paying {1}{U}.
  5. When Dress Down enters the battlefield, it triggers, causing you to draw a card.
  6. Activate Altar of Dementia by sacrificing a Zombie.
  7. When the Zombie dies, the Wilhelt token triggers, creating a 2/2 Zombie creature token with decayed, which becomes a 1/1 Zombie without decayed due to Dress Down.
  8. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the Zombie's power.
  9. Repeat from step 6.

Combo 4 with Myrkul, Lord of Bones + Humility

Also requires: Myrkul, Lord of Bones Myrkul, Lord of Bones Humility Humility
Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Show steps
  1. Activate Altar of Dementia by sacrificing Wilhelt.
  2. When Wilhelt dies, Myrkul triggers, exiling Wilhelt from your graveyard and creating a token copy of Wilhelt that is an enchantment.
  3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Wilhelt's power.
  4. Cast Humility by paying {2}{W}{W}.
  5. Activate Altar of Dementia by sacrificing a Zombie.
  6. When the Zombie dies, the Wilhelt token triggers, creating a 2/2 Zombie creature token with decayed, which becomes a 1/1 Zombie without decayed due to Humility.
  7. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the Zombie's power.
  8. Repeat from step 5.
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