Derevi, Empyrial Tactician + Emiel the Blessed + Grim Monolith

GWU identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Grim Monolith by tapping it, adding {C}{C}{C}.
  2. Activate Emiel by paying {3}, blinking Derevi.
  3. When Derevi enters the battlefield, it triggers, untapping Grim Monolith.
  4. Repeat.

What the combo produces