How can you create a combo with Great Whale, Corpse Dance, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Great Whale, Corpse Dance, Phyrexian Altar

Color identity: UB
Mana cost: 
Steps:
  1. Activate up to fiva mana producing lands you control by tapping them, adding at least {5}.
  2. Activate Phyrexian Altar by sacrificing Great Whale, adding {B}.
  3. Cast Corpse Dance with buyback by paying {4}{B}, returning Great Whale from your graveyard to the battlefield.
  4. Great Whale enters the battlefield, untapping up to seven lands that can tap to produce at least {5}.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite mana lands you control can produce
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Great Whale must be on the battlefield
  - Corpse Dance must be in your hand
  - Phyrexian Altar must be on the battlefield
  - You control up to seven lands that can tap to produce at least {5}.
[END OF COMBO PREREQUISITES]
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