I made a SB for fun and I just hit 40 and got Phantasmal Slayer and it does seems to be bugged. I've got some screens. So the info : Phantasmal Slayer : 2160% percent with ghost step 240% additional damage buff it becomes 5184% percent it. level 1 Ghost Slash : 1301% +2145 fixed damage becomes 1587,22% percent + 2615,8 fixed damage with Ghost Slash Drive full charge level 20. Stats : 1800 magic, 660 IDP. PS barely outdamages ghost slash full drive even tho it has more than twice of the percentage. GS fixed damage doesn't explain the difference in damage and you can see that PS damage doesn't change with ghost step lvls. Spoiler Phantasmal Slayer level 1 - Ghost Step level 1 180% damage buff to PS. Spoiler Phantasmal Slayer level 1 - Ghost step lvl 7 240% damage buff to PS - Not working / You can check the level of ghost step on the hotkey "V" Spoiler Ghost Slash Full Drive ------------- Now I'm sorry if somehow I'm using this wrong, I asked on world and people couldn't really explain me why it was doing this. Ghost Step is not buffing Phantasmal Slayer or am I doing something wrong?