Chandra, Gremlin Wrangler

Legendary Planeswalker — Chandra

[+1]: Create a 2/2 red Gremlin creature token. [−2]: Chandra, Gremlin Wrangler deals X damage to target creature or player, where X is the number of Gremlins you control.

"Sure, I could set things on fire by myself. But teamwork can be fun, too."