How can you create a combo with Horn of Gondor, Captain of the Mists, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Horn of Gondor, Captain of the Mists, Phyrexian Altar

Color identity: U
Mana cost: {3}
Steps:
  1. Activate Horn of Gondor by paying {3} and tapping it, creating at least five 1/1 Human Soldier creature tokens.
  2. When the Human Soldiers enter the battlefield, Captain of the Mists triggers that many times, untapping itself.
  3. Activate Phyrexian Altar five times by sacrificing five Human Soldiers, adding {4}{U}.
  4. Activate Captain of the Mists by paying {1}{U} and tapping it, untapping Horn of Gondor.
  5. Repeat.
  6. If you control six or more Humans as the combo begins, this combo nets infintie creature tokens, colored mana, and untap of permanents you control.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana permanents you control can produce
  - Infinite sacrifice triggers
  - Infinite untap of permanents you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Captain of the Mists does not have summoning sickness.
  - You control at least five Humans.
[END OF COMBO PREREQUISITES]
assistant