How can you create a combo with Staff of Domination, Alena, Kessig Trapper?
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[START OF COMBO]This combo can be formed with Staff of Domination, Alena, Kessig Trapper

Color identity: R
Mana cost: 
Steps:
  1. Activate Alena by tapping it, adding at least {R}{R}{R}{R}{R}.
  2. Activate Staff of Domination's third ability by paying {3} and tapping it, untapping Alena.
  3. Activate Staff of Domination's first ability by paying {1}, untapping it.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite mana creatures you control can produce
  - Infinite untap of creatures you control
  - Infinite red mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Alena does not have summoning sickness.
  - A creature with power five or greater has entered the battlefield this turn.
[END OF COMBO PREREQUISITES]
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