How it works
Steps
- 1Activate Phyrexian Altar by sacrificing Primeval Spawn, adding .
- 2When Primeval Spawn dies, its second ability and Mortuary trigger.
- 3Resolve the Mortuary trigger, putting Primeval Spawn on top of your library from your graveyard.
- 4Resolve the Primeval Spawn trigger, exiling the top ten cards of your library, and casting Primeval Spawn by paying a total of due to Chorus of the Conclave.
- 5Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?