Color Identity: C

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- You have a way to put a +1/+1 counter on a colorless creature you control.
- "Spirit" or "Snake" chosen with Instruments of War.
Mana Needed
- ({2} magic symbol)
available.
Steps
- Put a +1/+1 counter on a colorless creature you control.
- Omarthis's first triggered ability triggers.
- In response, activate Mirage Mirror by paying ({2} magic symbol)
, causing it to become a copy of Omarthis until end of turn. - Resolve the Omarthis trigger, putting a +1/+1 counter on itself.
- Mirage Mirror triggers, putting a +1/+1 counter on itself.
- Omarthis triggers, putting a +1/+1 counter on itself.
- Repeat from step 5 any number of times.
- End the loop by declining to place a +1/+1 counter on a creature.
- Warning: Omarthis's last ability can increase the risk of losing by drawing from an empty library if you place enough counters on them.
Results
- Infinite +1/+1 counters on certain creatures.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).