Hateful Eidolon + Phyrexian Altar Combos

1 known combo featuring both cards in Commander

Infinite death triggers Infinite draw triggers Infinite ETB Infinite LTB Infinite sacrifice triggers

Combo 1 with Ashiok's Reaper + Mortuary

Results: Infinite death triggers · Infinite draw triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Steps
  1. Activate Phyrexian Altar by sacrificing Hateful Eidolon, adding {B}.
  2. When Hateful Eidolon dies, Mortuary and Ashiok's Reaper trigger.
  3. Resolve the Mortuary trigger, putting Hateful Eidolon on top of your library from your graveyard.
  4. Resolve the Ashiok's Render trigger, causing you to draw Hateful Eidolon from your library.
  5. Cast Hateful Eidolon by paying {B}.
  6. Repeat.
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