Pilus

Piluses are one of the strongest enemies in the game, and move exactly like the player.

Behavior
They are incredibly hard to defeat, and will work together to corner and destroy you. Until you find something to destroy, run.

Tactics
The only way to destroy Piluses is to destroy something to bring them right next to you, then destroy them. They don't have to take a turn to manuever, so don't expect corners to help!