Nested Ghoul, Intruder Alarm, and Brawl

Prerequisites

• Nested Ghoul on the battlefield
• Intruder Alarm on the battlefield
• Brawl in hand
• Nested Ghoul does not have summoning sickness
• You have a way to give Nested Ghoul indestructible
• available

Steps

1. Cast Brawl by paying
2. Give Nested Ghoul indestructible, if needed
3. Activate Nested Ghoul by tapping it, dealing damage equal to its power to itself
4. Nested Ghoul triggers, creating a 2/2 Phyrexian Zombie creature token
5. When the Phyrexian Zombie enters the battlefield, Intruder Alarm triggers, untapping all creatures
6. Repeat from step 3

Results

• Infinite creature tokens
• Infinite damage to creatures
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite untap of all creatures