How can you create a combo with Rootha, Mercurial Artist, Desperate Ritual, Through the Breach?
user
[START OF COMBO]This combo can be formed with Rootha, Mercurial Artist, Desperate Ritual, Through the Breach

Color identity: UR
Mana cost: {5}{R}{R}{R}
Steps:
  1. Cast Desperate Ritual by paying {1}{R} and choosing to pay {2}{R}{R} and reveal Through the Breach from your hand, adding Through the Breach's effects to Desperate Ritual.
  2. Holding priority, activate Rootha by paying {2} and returning it to your hand, copying Desperate Ritual.
  3. Resolve the copy of Desperate Ritual, adding {R}{R}{R} and putting Rootha from your hand onto the battlefield.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite red mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Rootha, Mercurial Artist must be on the battlefield
  - Desperate Ritual must be in your hand
  - Through the Breach must be in your hand
[END OF COMBO PREREQUISITES]
assistant