How can you create a combo with Rootha, Mercurial Artist, Sneak Attack, Infernal Plunge?
user
[START OF COMBO]This combo can be formed with Rootha, Mercurial Artist, Sneak Attack, Infernal Plunge

Color identity: UR
Mana cost: {2}{R}
Steps:
  1. Cast Infernal Plunge by paying {R} and sacrificing another creature.
  2. Holding priority, activate Rootha by paying {2} and returning it from the battlefield to your hand, copying Infernal Plunge.
  3. Resolve the copy of Infernal Plunge, adding {R}{R}{R}.
  4. Activate Sneak Attack by paying {R}, putting Rootha from your hand onto the battlefield.
  5. Repeat from step 2.[END OF COMBO STEPS]

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

Other prerequisites:
  - Rootha, Mercurial Artist must be on the battlefield
  - Sneak Attack must be on the battlefield
  - Infernal Plunge must be in your hand
  - You control at least one additional creature.
[END OF COMBO PREREQUISITES]
assistant