Exxo Avalon/Shell Hammer

The Shell Hammer is a Hardmode which lobs a shell projectile that slides along the ground, bouncing off walls. The lobbed shell will pierce an unlimited amount of enemies until it despawns.

Trivia

 * Despite being called the Shell Hammer, it has no hammer capabilities.
 * The original idea and sprites for this weapon came from a forum post by user Milt69466, as an additional use for Turtle Shells.
 * The shell projectile bouncing off of walls is a reference to the Koopa Shells from the Mario video game series.