Grim Haruspex + Phyrexian Altar Combos

5 known combos featuring both cards in Commander

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

Combo 1 with Missy

Also requires: Missy Missy
Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Steps
  1. Activate Phyrexian Altar by sacrificing Grim Haruspex, adding {B}.
  2. When Grim Haruspex dies, Missy's first ability triggers, returning Grim Haruspex from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature.
  3. Activate Grim Haruspex's morph ability by paying {B}, turning it face up.
  4. Repeat.

Combo 2 with Yedora, Grave Gardener

Results: Infinite death triggers · Infinite green mana · Infinite landfall triggers · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Activate Phyrexian Altar by sacrificing Grim Haruspex, adding {B}.
  2. When Grim Haruspex dies, Yedora triggers, returning Grim Haruspex from your graveyard to the battlefield face down as a Forest land.
  3. Activate Grim Haruspex by tapping it, adding {G}.
  4. Activate Grim Haruspex's morph ability by paying {B}, turning it face up.
  5. Repeat.

Combo 3 with Olivia, Mobilized for War

Results: Near-infinite ETB · Infinite draw triggers · Infinite looting · Near-infinite LTB · Near-infinite death triggers · Near-infinite colored mana · Near-infinite sacrifice triggers · Infinite self-discard triggers
Show steps
  1. Activate Phyrexian Altar by sacrificing the persist creature, adding one mana of any color.
  2. When the persist creature dies, it and Grim Haruspex trigger.
  3. Resolve the Grim Haruspex trigger, causing you to draw a card.
  4. Resolve the persist creature's trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  5. When the persist creature enters the battlefield, Olivia triggers, putting a +1/+1 counter on the persist creature and causing you to discard a card.
  6. Repeat.

Combo 4 with Wan Shi Tong, All-Knowing + Golgari Thug

Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers · Infinite storm count · Infinite creature tokens · Infinite draw triggers
Show steps
  1. Activate Phyrexian Altar by sacrificing Golgari Thug, adding {B}.
  2. When Golgari Thug dies, it and Grim Haruspex trigger.
  3. Resolve the Golgari Thug trigger, returning it from your graveyard to the top of your library.
  4. Wan Shi Tong's second ability triggers, creating two 1/1 Spirit creature tokens.
  5. Resolve the Grim Haruspex trigger, causing you to draw Golgari Thug from your library.
  6. Activate Phyrexian Altar by sacrificing a Spirit, adding {1}.
  7. Cast Golgari Thug by paying {1}{B}.
  8. Repeat.

Combo 5 with Lyla, Holographic Assistant + Forsaken Miner

Results: Infinite card draw · Near-infinite ETB · Infinite draw triggers · Near-infinite LTB · Near-infinite death triggers · Near-infinite sacrifice triggers
Show steps
  1. Activate Phyrexian Altar by sacrificing Forsaken Miner, adding {B}.
  2. When Forsaken Miner dies, Grim Haruspex triggers, causing you to draw a card.
  3. Lyla triggers, targeting a creature an opponent controls.
  4. Forsaken Miner triggers, causing you to pay {B} to return Forsaken Miner from your graveyard to the battlefield.
  5. Resolve the Lyla trigger.
  6. Repeat.
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