Fallen Lunatic (Diablo III)

Fallen Lunatics make their debut in Diablo III.

In-game
Lunatics are suicidal attackers, running towards the player and then stabbing themselves with the knife in their hand until they explode. The aftermath of the explosion results with a spine and rib-cage covered in blue ichor laying around. The explosion is not instant, and will only damage enemies. However, once their explosion animation starts, one can still outrun them: the Lunatics will continue chasing the player, but will explode moments afterwards.

Lunatics only award experience if killed before they can explode. Note that their movement speed is faster than average, so movement speed bonus gear is advised.

Ember the Rift Guardian summons Molten Lunatics to his side in battle. As of patch 2.2.0, summons Fallen Lunatics to aid the character in battle.

Development
In early versions of the game (and some time after release) one could encounter Champion Lunatics.