Ruthless Knave + Gravecrawler + Pawn of Ulamog + Sifter of Skulls

Ruthless Knave
Gravecrawler
Pawn of Ulamog
Sifter of Skulls

Requires
All permanents on the battlefield. You control another Zombie. 2b available.
Steps
  1. Activate Ruthless Knave by paying 2b and sacrificing Gravecrawler.
  2. Gravecrawler dies, triggering Pawn of Ulamog and Sifter of Skulls.
  3. Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token.
  4. Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion creature token.
  5. Resolve the Ruthless Knave ability from step 1, creating two Treasure tokens.
  6. Activate the Eldrazi Scion and Eldrazi Spawn by sacrificing them, adding cc.
  7. Activate the Treasure tokens by tapping and sacrificing them, adding bb.
  8. Cast Gravecrawler from your graveyard by paying b.
  9. Repeat.
Results
Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count.

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