Mishra, Eminent One + Voltaic Construct + Gilded Lotus

Mishra, Eminent One
Voltaic Construct
Gilded Lotus

Requires
All permanents on the battlefield.
Steps
  1. At the beginning of your combat phase, Mishra triggers, creaitng a token copy of Gilded Lotus that is a 4/4 Construct artifact creature token with haste named Mishra's Warform in addition to its other types
  2. Activate Mishra's Warform by tapping it, adding three mana of any color
  3. Activate Voltaic Construct by paying 2, untapping Mishra's Warform
  4. Repeat from step 2
Results
Infinite colored mana. Infinite untap of artifact creatures you control.