Imp Overlord

Trivia:
Imp Overlord is referred to as "Manager of the Jazz Hands" in the game files.
 * It is speculated that the Imp Overlord is a boss designed by a kickstarter backer via backer rewards.

Tactics
The Imp Overlord has 2 attacks it can use. The first (and easiest to avoid) is an attack quite similar to the Ancient Wisps attack where flames come from the sky. It is easily noticed and can be dodged by either jumping or using a dodge ability. The second attack is a lunge where the boss swipes at you dealing damage if hit. While not necessarily hard to dodge, the attack moves quite fast and can easily harm you if you're distracted by a crowd of enemies.

The Imp Overlord can drop the Imp Overlord's Tentacle Imp Overlord