Earthcraft, Legolas's Quick Reflexes, and Boros Reckoner

Prerequisites

• Earthcraft on the battlefield
• Legolas's Quick Reflexes in hand
• Boros Reckoner on the battlefield
• available

Steps

1. Earthbend a basic land you control
2. Cast Legolas's Quick Reflexes by paying , targeting the earthbent land
3. Activate Earthcraft by tapping the earthbent land, targeting the earthbent land
4. The land triggers, causing it to deal damage equal to its power to Boros Reckoner
5. Boros Reckoner triggers, dealing that much damage to an applicable target
6. Resolve the Earthcraft trigger, untapping the earthbent land
7. Repeat from step 3

Results

• Infinite damage