How can you create a combo with Grenzo, Dungeon Warden, The Cauldron of Eternity, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Grenzo, Dungeon Warden, The Cauldron of Eternity, Ashnod's Altar

Color identity: BR
Mana cost: 
Steps:
  1. Activate Ashnod's Altar by sacrificing a creature with base power less than or equal to Grenzo's power, adding {C}{C}.
  2. The creature dies, triggering The Caludron of Eternity, putting the creature on the bottom of your library from your graveyard.
  3. Activate Grenzo by paying {2}, putting the creature into your graveyard from the bottom of your library, then putting it onto the battlefield.
  4. 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
  - You control a nontoken creature with base power less than or equal to Grenzo's power.
[END OF COMBO PREREQUISITES]
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