Color Identity: C

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- Chromatic Orrery does not have summoning sickness.
Steps
- Activate Chromatic Orrery's first ability by tapping it, adding ({5} magic symbol)
. - Activate Karn by paying ({1} magic symbol)
, causing Chromatic Orrery to become an artifact creature until end of turn. - Activate Umbral Mantle's equip ability by paying ({0} magic symbol)
, attaching it to Chromatic Orrery. - Activate Chromatic Orrery by paying ({3} magic symbol)
and untapping it, giving it +2/+2 until end of turn. - Activate Chromatic Orrery's first ability by tapping it, adding ({5} magic symbol)
. - Repeat from step 4.
- Once you have infinite mana, you may instead use Chromatic Orrery's second ability if you control a colored permanent.
Results
- Infinite card draw.
- Infinite colored mana.
- Infinite colorless mana.
- Infinite draw triggers.
- Infinitely large creature until end of turn.
- Infinite untap of creatures you control.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).