Red Hulk + Boros Reckoner + Heroic Intervention

Prerequisites

• You have a way to deal damage to Red Hulk.

Steps

1. 1Give Red Hulk and Boros Reckoner indestructible using Heroic Intervention.
2. 2Deal damage to Red Hulk.
3. 3Red Hulk triggers, putting a +1/+1 counter on it and dealing damage to Boros Reckoner.
4. 4Boros Reckoner triggers, dealing damage to Red Hulk.
5. 5Repeat from step 3.

Effects

• Infinite +1/+1 counters on a creature
• Infinite damage to one opponent