Altar of Dementia + Kenrith, the Returned King Combos

4 known combos featuring both cards in Commander

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

Combo 1 with Peregrine Drake

Also requires: Peregrine Drake Peregrine Drake
Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Steps
  1. Activate up to five lands by tapping them, adding at least {4}{B}.
  2. Activate Kenrith's fifth ability by paying {4}{B}, returning Peregrine Drake from your graveyard to the battlefield.
  3. When Peregrine Drake enters the battlefield, it triggers, untapping up to five lands.
  4. Activate Altar of Dementia by sacrificing Peregrine Drake, causing target player to mill cards equal to Peregrine Drake's power.
  5. Repeat.

Combo 2 with Selvala, Heart of the Wilds

Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill · Infinite lifegain triggers · Infinite lifegain · Return all creature cards from all graveyards to the battlefield under your control · Infinite card draw for any number of players · Infinite draw triggers for any number of opponents · Infinite +1/+1 counters on creatures you control
Show steps
  1. If Selvala has summoning sickness, activate Kenrith's first ability by paying {R}, giving all creatures haste until end of turn.
  2. Activate Selvala by paying {G} and tapping it, adding at least {4}{B}{R}{G}.
  3. Activate Altar of Dementia by sacrificing Selvala, causing target player to mill cards equal to Selvala's power.
  4. Activate Kenrith's fifth ability by paying {4}{B}, returning Selvala from your graveyard to the battlefield.
  5. Repeat.

Combo 3 with Palinchron

Also requires: Palinchron Palinchron
Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill · Infinite mana lands you control can produce · Infinite untap of lands you control
Show steps
  1. Activate up to seven lands by tapping them, adding at least {4}{B}.
  2. Activate Kenrith's fifth ability by paying {4}{B}, returning Palinchron from your graveyard to the battlefield.
  3. When Palinchron enters the battlefield, it triggers, untapping up to seven lands.
  4. Activate Altar of Dementia by sacrificing Palinchron, causing target player to mill cards equal to Palinchron's power.
  5. Repeat.

Combo 4 with Great Whale

Also requires: Great Whale Great Whale
Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill · Infinite mana lands you control can produce · Infinite untap of lands you control
Show steps
  1. Activate up to seven lands by tapping them, adding at least {4}{B}.
  2. Activate Kenrith's fifth ability by paying {4}{B}, returning Great Whale from your graveyard to the battlefield.
  3. When Great Whale enters the battlefield, it triggers, untapping up to seven lands.
  4. Activate Altar of Dementia by sacrificing Great Whale, causing target player to mill cards equal to Great Whale's power.
  5. Repeat.
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