How can you create a combo with Reassembling Skeleton, Phyrexian Altar, Pawn of Ulamog?
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[START OF COMBO]This combo can be formed with Reassembling Skeleton, Phyrexian Altar, Pawn of Ulamog

Color identity: B
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Reassembling Skeleton, adding {B}
  2. Pawn of Ulamog triggers, creating a 0/1 Eldrazi Spawn creature token with "Sacrifice this creature: add {C}"
  3. Activate the Eldrazi Spawn by sacrificing it, adding {C}.
  4. Activate Reassembling Skeleton by paying {1}{B}, returning it from your graveyard to the battlefield tapped.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant