Duke's Decapitator is a Hardmode non-consumable rogue weapon that drops from Duke Fishron. It throws a fast spinning axe that slowly decelerates to a stop and shatters shortly after. The axe will stop completely upon hitting an enemy, "latching" onto them while dealing several hits. While "latched" onto an enemy this way, the frequency of hits correspond to the speed of the spin, as the spinning decreases the longer the axe lingers.
Performing a stealth strike with Duke's Decapitator will cause the next axe to form floating bubbles as it travels, gradually increasing until the axe itself breaks.
Its best modifier is Unreal.