Voltaic Construct + Wirewood Channeler + Biotransference

Voltaic Construct
Wirewood Channeler
Biotransference

Requires
All permanents on the battlefield. Wirewood Channeler does not have summoning sickness. You control at least three Elves.
Steps
  1. Tap Wirewood Channeler for ggg
  2. Pay 2 to Voltaic Construct to untap Wirewood Channeler
  3. Repeat
Results
Infinite untap of creatures. Infinite colored mana.