Infinite mana lands you control can produce, Infinite untap of lands you control
Activate Mutavault's second ability by paying , causing it to become a 2/2 creature with all creature types in addition to its other types.
Cast Exchange of Words by paying .
When Exchange of Words enters the battlefield, it triggers, exchanging the text boxes of Ley Weaver and Mutavault.
Activate Mutavault by tapping it, untapping itself and any other land you control.
Repeat step 4.
Component Cards
How It Works
Activate Mutavault's second ability by paying , causing it to become a 2/2 creature with all creature types in addition to its other types.
Cast Exchange of Words by paying .
When Exchange of Words enters the battlefield, it triggers, exchanging the text boxes of Ley Weaver and Mutavault.
Activate Mutavault by tapping it, untapping itself and any other land you control.
Repeat step 4.