Chorus of the Conclave + Primeval Spawn Combos

2 known combos featuring both cards in Commander

Exile your library Infinite death triggers Infinite ETB Infinite LTB Infinite sacrifice triggers

Combo 1 with Mortuary + Phyrexian Altar

Results: Exile your library · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Steps
  1. Activate Phyrexian Altar by sacrificing Primeval Spawn, adding {1}.
  2. When Primeval Spawn dies, its second ability and Mortuary trigger.
  3. Resolve the Mortuary trigger, putting Primeval Spawn on top of your library from your graveyard.
  4. Resolve the Primeval Spawn trigger, exiling the top ten cards of your library, and casting Primeval Spawn by paying a total of {1} due to Chorus of the Conclave.
  5. Repeat.

Combo 2 with Mortuary + Ashnod's Altar

Results: Exile your library · Infinite +1/+1 counters on a creature · Infinite colorless mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Ashnod's Altar by sacrificing Primeval Spawn, adding {C}{C}.
  2. When Primeval Spawn dies, its second ability and Mortuary trigger.
  3. Resolve the Mortuary trigger, putting Primeval Spawn on top of your library from your graveyard.
  4. Resolve the Primeval Spawn trigger, exiling the top ten cards of your library, and casting Primeval Spawn by paying a total of {1} due to Chorus of the Conclave.
  5. Repeat.
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