Chromatic Orrery + Corridor Monitor + Mana Echoes + Saheeli, the Sun's Brilliance

Mana needed: {2}

UR identity

Commander legal

The 4 combo pieces

What must be in place

Saheeli does not have summoning sickness.

How to execute it

  1. Activate Saheeli by paying {2} and tapping it, creating a token copy of Corridor Monitor with haste.
  2. When the token Corridor Monitor enters the battlefield, it and Mana Echoes trigger.
  3. Resolve the Corridor Monitor trigger, untapping Saheeli.
  4. Resolve the Mana Echoes trigger, adding {C} for each creature you control that shares a creature type with Corridor Monitor.
  5. Repeat.

What the combo produces