Exchange of Words + Scute Swarm + Mishra's Factory

Exchange of Words

Scute Swarm

Mishra's Factory

How it works

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