Some Sub Classes do have some kind of buff like the Pets Item Loot Buff.
Click to turn it on, click again to turn it off. From my memory they called it [Insert Sub Class Weapon Name] Final Hits, or equivalent meaning
HorieChan 14x RuinWalker HiranoChan 8x Artist Kugimiyachan 8x Blader xRozalinx 11x Gunslinger
Gotta start think of how to obtain Magical full set.