Polyraptor + Forerunner of the Empire + Cathars' Crusade

Prerequisites

• You have a way to deal damage to Polyraptor.

Steps

1. 1Deal damage to Polyraptor.
2. 2Polyraptor triggers, creating a token copy of it.
3. 3The Polyraptor token enters the battlefield, triggering Forerunner of the Empire's second ability and Cathars' Crusade.
4. 4Resolve the Cathars' Crusade trigger, putting a +1/+1 counter on each creature you control.
5. 5Resolve the Forerunner of the Empire trigger, dealing 1 damage to each creature.
6. 6Each Polyraptor you control triggers.
7. 7Resolve a Polyraptor trigger, creating a token copy of it.
8. 8Repeat from step 3.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature tokens
• Infinite damage to all creatures
• Infinite damage to creatures
• Infinite death triggers