Umbral Mantle, and Llanowar Tribe

Prerequisites

• Umbral Mantle on the battlefield
• Llanowar Tribe on the battlefield
• undefined

Steps

1. Activate Llanowar Tribe by tapping it, adding
2. Activate Llanowar Tribe by paying and untapping it, giving it +2/+2 until end of turn
3. Repeat

Results

• Infinite power for a creature until end of turn