Wirewood Channeler, and Umbral Mantle

Prerequisites

• Wirewood Channeler on the battlefield
• Umbral Mantle on the battlefield
• Umbral Mantle attached to Wirewood Channeler
• You control at least three other Elves
• Wirewood Channeler does not have summoning sickness

Steps

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

Results

• Infinite colored mana
• Infinitely large Wirewood Channeler until end of turn