Xavier Sal, Infested Captain
Scurry Oak
Intruder Alarm

   Prerequisites

What do I need to start this combo?
All permanents 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.

   Steps

How does this combo work?
1
Activate Xavier Sal's second ability by tapping it and sacrificing any other creature you control, putting a +1/+1 counter on Scurry Oak.
2
Scurry Oak triggers, creating a 1/1 Squirrel creature token.
3
When the Squirrel enters the battlefield, Intruder Alarm triggers, untapping all creatures.
4
Repeat.
5
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.

   Results

What do I get from this combo?
Infinite +1/+1 counters on a creature
Infinite copies of creature tokens you control
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite mana creatures you control can produce
Infinite proliferate
Infinite sacrifice triggers
Infinite untap of creatures
Infinite untap of creatures you control
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