Ancestral Statue + Ashnod's Altar + Endrek Sahr, Master Breeder

Ancestral Statue
Ashnod's Altar
Endrek Sahr, Master Breeder

Requires
Ancestral Statue in hand. All other permanents on the battlefield. 4 available.
Steps
  1. Cast Ancestral Statue
  2. Endek Sahr triggers, creating four 1/1 Thrull tokens
  3. Ancestral Statue enters the battlefield, returning itself to your hand
  4. Sacrifice two Thrulls to Ashnod's Altar for cccc
  5. Repeat
Results
Infinite ETB. Infinite LTB. Infinite death triggers. Infinite colorless mana. Infinite sacrifice triggers. Infinite storm count.