Phelddagrif, and Intruder Alarm

Prerequisites

• Phelddagrif on the battlefield
• Intruder Alarm on the battlefield

Steps

1. Activate a creature by tapping it, adding at least
2. Activate Phelddagrif's first ability by paying , causing an opponent to create a 1/1 Hippo creature token
3. When the Hippo enters the battlefield, Intruder Alarm triggers, untapping all creatures
4. Repeat

Results

• Infinite mana creatures you control can produce
• Infinite untap of all creatures
• Infinite creature tokens for any number of opponents
• Infinite ETB for any number of opponents