will need C grade. oO. but the best way to EXP be active players is doing KS on bosses. Cursed MA on BD and PP and go KS 1 night its easy 20kk exp.
but basical if u will EXP on mobs, u need a dual C, like the topC 20kk with othel maybe,. so is what u need. maybe full plate set 8kk, C jewesl set 2kk.
PP only will need if u wanna something better: karmian ou banana set. dont need weapon ( the starter its good ).
But pp u can use to Moon set robe its not bad at all.