How can you create a combo with Xavier Sal, Infested Captain, Animation Module, Intruder Alarm?
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[START OF COMBO]This combo can be formed with Xavier Sal, Infested Captain, Animation Module, Intruder Alarm

Color identity: BGU
Mana cost: 
Steps:
  1. Activate a mana-producing creature by tapping it, adding at least {1}.
  2. Activate Xavier Sal's second ability by tapping it and sacrificing another creature, causing you to put a +1/+1 counter on a creature you control.
  3. Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  4. When the Servo enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  5. Repeat.
  6. Once you have infinite +1/+1 counters on a creature, you may instead use Xavier Sal's first ability to get infinite copies of creature tokens you control.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one creature that has a +1/+1 counter on it.
  - You control at least one creature that can tap to produce at least {1}.
  - You control at least one additional creature.
  - Xavier Sal does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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