Nowaki
Well... there are 2 sides, Full int & Full Sta, killing faster or not being killed that fas?
i would prefire the full int way, since even on full sta ur going to be 1 hit killed Bps & Harles..... Same way u can kill them in 2/3 aoes if full Sta.... the bad point is that if there is any mentalist/templar ur going to die faster cuz of reflect [since ur damage is hight but u dont have hp to survive the reflect]... But its kinda up to you.... the good way may be use both Fd sta & int so u can swap based on how u see everything going....
about what set... well since u said Donator, then the Arum, any D staff [all have same stats], D. shield [ATK], Mask and cloack Atk/hp ones, D fashion & D. Per .... everything with the SOPAs (scroll of perfect awakening) that u want [if going to Int then everything on int, if sta, then sta]...
Btw if u ask for an hybrith they arent bad but also they arent good for anything.... you dont have enought Hp to Tank or enought damage to kill fast..... thats why i recommend go on Full Stat..... But thats my personal opinion.