Primeval Spawn + Chorus of the Conclave + Mortuary + Ashnod's Altar
Primeval Spawn
Chorus of the Conclave
Mortuary
Ashnod's Altar
Exile your libraryInfinite +1/+1 counters on a creatureInfinite colorless manaInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite storm count
How it works
Activate Ashnod's Altar by sacrificing Primeval Spawn, adding CC.
When Primeval Spawn dies, its second ability and Mortuary trigger.
Resolve the Mortuary trigger, putting Primeval Spawn on top of your library from your graveyard.
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.