Although spawn rates are significantly increased during a Blood Moon, it is not guaranteed that a Clown will spawn.
Although the Bananarang is a weapon, due to its stackable nature (a feature shared only with Light Discs), the Clown may drop multiple Bananarangs at a time.
In Master Mode, his bombs can do extreme damage, possibly even killing the player in a single hit if they’re not prepared. The Chattering Teeth Bombs he throws will stay even after the clown dies, and can do similar extreme damage in Master Mode.
This enemy is modeled after the archetypal evil clown, which has been a recurring urban legend in the United States since the 1900s.
The Bestiary entry for the Clown: "His origins unknown, this creepy fiend balances himself on a ball while hurling explosive destruction at everything around him."