Llanowar Tribe, Umbral Mantle, and Leyline of Abundance

Prerequisites

• Llanowar Tribe on the battlefield
• Umbral Mantle on the battlefield
• Leyline of Abundance on the battlefield
• undefined

Steps

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

Results

• Infinite +1/+1 counters
• Infinitely large Llanowar Tribe until end of turn
• Infinite green mana
• Infinite power for a creature until end of turn