Sliver Hivelord, Spiteful Sliver, and Guilty Conscience

Prerequisites

• Sliver Hivelord on the battlefield
• Spiteful Sliver on the battlefield
• Guilty Conscience on the battlefield

Steps

1. Deal damage to Spiteful Sliver
2. Spiteful Sliver triggers, dealing that much damage to target player or planeswalker
3. Guilty Conscience triggers, dealing that much damage to Spiteful Sliver
4. Repeat

Results

• Infinite damage