Cradle Clearcutter, and Umbral Mantle

Prerequisites

• Cradle Clearcutter on the battlefield
• Umbral Mantle on the battlefield
• Umbral Mantle attached to Cradle Clearcutter
• Cradle Clearcutter does not have summoning sickness
• Cradle Clearcutter has a power of three or greater

Steps

1. Activate Cradle Clearcutter by tapping it, adding at least
2. Activate Cradle Clearcutter by paying and untapping it, giving it +2/+2 until end of turn
3. Repeat

Results

• Infinitely large Cradle Clearcutter until end of turn
• Infinite green mana