Wasp Ruby

The Wasp Ruby is a Hardmode magic weapon that fires a beam of light that deals a good amount of damage, but also consumes mana very quickly. It is a guaranteed drop from Yellowjacket, and it is implying that it is the same ruby that adorns Yellowjacket himself.

The Wasp Ruby projects a red beam of light that homes in on nearby enemies. It cannot travel through blocks. The beam will remain until the mouse button is released or the player runs out of mana. It consumes 6 mana every second.

Assuming the player has a significant amount of mana, the Wasp Ruby can prove to be a great magic weapon in the fights against Plantera, The Candelabra, Golem, and even up to Atlas.