How can you create a combo with Rootha, Mercurial Artist, Sneak Attack, Jeska's Will?
user
[START OF COMBO]This combo can be formed with Rootha, Mercurial Artist, Sneak Attack, Jeska's Will

Color identity: UR
Mana cost: {4}{R}
Steps:
  1. Cast Jeska's Will by paying {2}{R}.
  2. Holding priority, activate Rootha by paying {2} and returning it from the battlefield to your hand, copying Jeska's Will.
  3. Resolve the copy of Jeska's Will, adding at least {R}{R}{R}.
  4. Activate Sneak Attack by paying {R}, putting Rootha from your hand onto the battlefield.
  5. Repeat from step 2.
  6. If an opponent has four or more cards in hand, this combo nets infinite red mana.
  7. If you control your commander, you may also select both of Jeska's Will's modes when casting it to exile your library with the ability to play the exiled cards this turn.[END OF COMBO STEPS]

Result:
  - Exile your library
  - 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
  - Sneak Attack must be on the battlefield
  - Jeska's Will must be in your hand
  - An opponent has at least three cards in hand.
[END OF COMBO PREREQUISITES]
assistant