i dont use thorn... im terrible with hand cannons... but it is not OP... high caliber rounds deal with thorners nicely (MIDA ftw)... fusions deal with thorners nicely.... the shotgun-flanking technique ddeals with thorners nicely... a sniper bullet to the dome deals with thorners nicely... red death is probably the kryptonite to thorn... any super deals with them nicely... i feel if there are enough ways to deal with a weapon, its not OP [spoiler]obligatory "git gud scrub" inserted here[/spoiler]