Requires

Exchange of Words must be in hand. Scute Swarm must be on the battlefield. Mutavault must be on the battlefield. Mana needed:

Steps

1. Activate Mutavault's first ability by tapping it, adding .
2. Activate Mutavault's second ability by paying , causing it to become a 2/2 creature that is still a land until end of turn.
3. Cast Exchange of Words by paying , exchanging the text boxes of Mutavault and Scute Swarm.
4. Play a land.
5. The land enters the battlefield, triggering Mutavault's Scute Swarm ability, creating a copy of Mutavault with its original text.
6. Step 5 repeats in a mandatory loop unless interrupted, drawing the game.

Results