How can you create a combo with Omarthis, Ghostfire Initiate, Spark Double?
user
[START OF COMBO]This combo can be formed with Omarthis, Ghostfire Initiate, Spark Double

Color identity: U
Mana cost: {3}{U}
Steps:
  1. Cast Spark Double by paying {3}{U}, choosing to have it enter the battlefield as a nonlegendary copy of Omarthis with a +1/+1 counter on it.
  2. Omarthis triggers, putting a +1/+1 counter on itself.
  3. Spark Double triggers, putting a +1/+1 counter on itself.
  4. Repeat from step 2.[END OF COMBO STEPS]

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

Other prerequisites:
  - Omarthis, Ghostfire Initiate must be on the battlefield
  - Spark Double must be in your hand
[END OF COMBO PREREQUISITES]
assistant