How can you create a combo with Eerie Ultimatum, Mitotic Slime, Phyrexian Altar, Archaeomancer?
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[START OF COMBO]This combo can be formed with Eerie Ultimatum, Mitotic Slime, Phyrexian Altar, Archaeomancer

Color identity: GWUB
Mana cost: 
Steps:
  1. Activate Phyrexian Altar twice by sacrificing Mitotic Slime and Archaeomancer, adding {W}{W}.
  2. When Mitotic Slime dies, it triggers, creating two 2/2 Ooze creature tokens.
  3. Activate Phyrexian Altar twice by sacrificing the Oozes, adding {G}{G}.
  4. When the Oozes die, they trigger, creating four 1/1 Ooze creature tokens.
  5. Activate Phyrexian Altar three times by sacrificing three Oozes, adding {B}{B}{B}.
  6. Cast Eerie Ultimatum by paying {W}{W}{B}{B}{B}{G}{G}, returning Archaeomancer and Mitotic Slime to the battlefield from your graveyard.
  7. When Archaeomancer enters the battlefield, it triggers, returning Eerie Ultimatum from your graveyard to your hand.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Eerie Ultimatum must be in your hand
  - Mitotic Slime must be on the battlefield
  - Phyrexian Altar must be on the battlefield
  - Archaeomancer must be on the battlefield
[END OF COMBO PREREQUISITES]
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