How can you create a combo with Karakas, Emrakul, the Aeons Torn?
user
[START OF COMBO]This combo can be formed with Karakas, Emrakul, the Aeons Torn

Color identity: W
Mana cost: {15} each turn
Steps:
  1. Cast Emrakul for {15}.
  2. Emrakul triggers, granting you an extra turn after this one.
  3. Tap Karakas to return Emrakul to your hand.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Karakas must be on the battlefield
  - Emrakul, the Aeons Torn must be in your hand
[END OF COMBO PREREQUISITES]
assistant