Omarthis, Ghostfire Initiate + Mirage Mirror + Mirror Box

Prerequisites

• You have a way to put a +1/+1 counter on a colorless creature you control.

Steps

1. 1Put a +1/+1 counter on a colorless creature you control.
2. 2Omarthis's first triggered ability triggers.
3. 3In response, activate Mirage Mirror by paying , causing it to become a copy of Omarthis until end of turn.
4. 4Resolve the Omarthis trigger, putting a +1/+1 counter on itself.
5. 5Mirage Mirror triggers, putting a +1/+1 counter on itself.
6. 6Omarthis triggers, putting a +1/+1 counter on itself.
7. 7Repeat from step 5 any number of times.
8. 8End the loop by declining to place a +1/+1 counter on a creature.
9. 9Warning: Omarthis's last ability can increase the risk of losing by drawing from an empty library if you place enough counters on them.

Effects

• Infinite +1/+1 counters on certain creatures