Rubico Prime

The Rubico Prime is a craftable post-Moon Lord gun that is the direct upgrade to the Pestilent Defiler. When used, a high-velocity round is fired every half-second for a total of 10 times. The bullets pierce all tiles and enemies, dealing 25% more damage during a critical strike. Additionally, damage increases by 10% on inorganic targets, stacking with the critical strike effect for a total of 35% damage boost.

Trivia

 * The weapon itself is a reference to the Rubico Prime from the video game Warframe.