Intruder Alarm, and Steward of Solidarity

Prerequisites

• Intruder Alarm on the battlefield
• Steward of Solidarity on the battlefield
• Steward of Solidarity does not have summoning sickness

Steps

1. Activate Steward of Solidarity by tapping it, creating a 1/1 Warrior token
2. Warrior token enters the battlefield, triggering Intruder Alarm, untapping all creatures
3. Repeat

Results

• Infinite creature tokens
• Infinite ETB