Xavier Sal, Infested Captain + Intruder Alarm + Sharp-Eyed Rookie

Xavier Sal, Infested Captain

Intruder Alarm

Sharp-Eyed Rookie

How it works

1. Activate Xavier Sal's first ability by tapping it and removing a counter from a permanent you control, creating a copy of another creature token with base power or toughness that is greater than Sharp-Eyed Rookie's power or toughness.
2. When the Wolf token enters the battlefield, Intruder Alarm and Sharp-Eyed Rookie trigger.
3. Resolve the Intruder Alarm trigger, untapping all creatures.
4. Resolve the Sharp-Eyed Rookie trigger, putting a +1/+1 counter on it and creating a Clue artifact token.
5. Repeat.

This brilliant loop turns the tap of Xavier Sal, Infested Captain into an engine for infinite tokens and growth by chaining together creature entries and untaps. Every time Xavier populates a creature token whose stats outmatch Sharp-Eyed Rookie, that newcomer's arrival triggers the Rookie to grow and investigate while Intruder Alarm untaps your entire board—including Xavier Sal, Infested Captain. Because Intruder Alarm keeps every creature fresh and ready, you can simply tap Xavier again, feeding a continuous cycle that floods the battlefield with infinite creature tokens, Clues, and endless untaps.