Blazing Sunsteel, and Copy Artifact

Prerequisites

• Blazing Sunsteel on the battlefield
• Copy Artifact on the battlefield
• undefined

Steps

1. Deal damage to the indestructible creature
2. Blazing Sunsteel and Copy Artifact trigger
3. Resolve the Blazing Sunsteel trigger, dealing damage equal to the damage dealt to any target
4. Resolve the Copy Artifact trigger, dealing damage equal to the damage dealt to the indestructible creature
5. Repeat from step 2

Results

• Infinite damage