How can you create a combo with Exchange of Words, Ley Weaver, Mutavault?
user
[START OF COMBO]This combo can be formed with Exchange of Words, Ley Weaver, Mutavault

Color identity: GU
Mana cost: {2}{U}{U}
Steps:
  1. Activate Mutavault's second ability by paying {1}, causing it to become a 2/2 creature with all creature types in addition to its other types.
  2. Cast Exchange of Words by paying {1}{U}{U}.
  3. When Exchange of Words enters the battlefield, it triggers, exchanging the text boxes of Ley Weaver and Mutavault.
  4. Activate Mutavault by tapping it, untapping itself and any other land you control.
  5. Repeat step 4.[END OF COMBO STEPS]

Result:
  - Infinite mana lands you control can produce
  - Infinite untap of lands you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Exchange of Words must be in your hand
  - Ley Weaver must be on the battlefield
  - Mutavault must be on the battlefield
  - Mutavault does not have summoning sickness.
  - You control at least one additional land.
[END OF COMBO PREREQUISITES]
assistant