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

Saheeli, the Sun's Brilliance

Mana Echoes

Chromatic Orrery

Glamermite

How it works

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