Color Identity: U, B, R

Prerequisites

  1.  All permanents on the battlefield.

Steps

  1. At the beginning of your combat phase,
    Mishra, Eminent One
    Mishra     triggers, creaitng a token copy of
    Grim Monolith
    Grim Monolith     that is a 4/4 Construct artifact creature token with haste named
    Mishra, Eminent One
    Mishra    's Warform in addition to its other types.
  2. Activate
    Mishra, Eminent One
    Mishra    's Warform's first ability by tapping it, adding ({C} magic symbol)  ({C} magic symbol)  ({C} magic symbol)  .
  3. Activate
    Voltaic Construct
    Voltaic Construct     by paying ({2} magic symbol)  , untapping
    Mishra, Eminent One
    Mishra    's Warform.
  4. Repeat from step 2.

Results

  1. Infinite colorless mana.
  2. Infinite untap of artifact creatures you control.

Metadata

  1. In 29 decks according to EDHREC.
footer