How can you create a combo with Xavier Sal, Infested Captain, Scurry Oak, Thornbite Staff?
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[START OF COMBO]This combo can be formed with Xavier Sal, Infested Captain, Scurry Oak, Thornbite Staff

Color identity: BGU
Mana cost: 
Steps:
  1. Activate Xavier Sal's second ability by tapping it and sacrificing any other creature you control.
  2. When the creature dies, Xavier Sal triggers, untapping Xavier Sal.
  3. Resolve the Xavier Sal ability from step 1, putting a +1/+1 counter on Scurry Oak.
  4. Scurry Oak triggers, creating a 1/1 Squirrel creature token.
  5. Repeat.
  6. Once you have infinite +1/+1 counters on Scurry Oak, you may instead use Xavier Sal's first ability to get infinite copies of creature tokens you control.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Scurry Oak
  - Infinite copies of creature tokens you control
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite proliferate
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one additional creature.
  - Xavier Sal does not have summoning sickness.
  - Scurry Oak has at least one +1/+1 counter on it.
  - Thornbite Staff attached to Xavier Sal.
[END OF COMBO PREREQUISITES]
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