Red Hulk, Boros Reckoner, and Rootborn Defenses

Prerequisites

• Red Hulk on the battlefield
• Boros Reckoner on the battlefield
• Rootborn Defenses in hand
• available

Steps

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

Results

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