How can you create a combo with Omarthis, Ghostfire Initiate, Mirage Mirror, The Immortal Sun, Mirror Gallery?
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[START OF COMBO]This combo can be formed with Omarthis, Ghostfire Initiate, Mirage Mirror, The Immortal Sun, Mirror Gallery

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

Result:
  - Infinite +1/+1 counters on Omarthis and Mirage Mirror[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have a way to put a +1/+1 counter on a colorless creature you control.
[END OF COMBO PREREQUISITES]
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