You'd be better off with a forcium s.amp blade and a 30 dmg lapis crystal. More attack that way than osm blade and forcium orb/crystal.
Fps need a lil help from a pro like you I plan on using osm blade +7 30% cd What should my orb/ Kat be? Lapis crystal db +6 6 crafted 26 or forcy orb +6 7 samp