CK Hyb is easy. Enough str/dex for what relics you want to use, then it's basically wis up to 250'ish, enough ess so you don't need to med every 2m, enough con to tank a LOT of hits before you need to heal external wounds. Having a keyboard with macro's helps a lot on grind, you can spam cheap ew herbs non stop. Weapon is basically bracers with as high level as you can, as much refine as you can, as much crit as you can. CK Hyb is basically a "crit machine", grid is basically either def nuke, def-def-def-fc or def-def-def-def-aoe.
Now, that said, some stuff depends on whether or not the server has dmg overflow fixed. If it has, all is good, if not, you might need to restat at around GL or so, when def nuke starts doing negative damage
Bosses might also be a total **** depending on how much ck def they have.
Fun role, but as far as pve, besides the fast leveling it's seriously under powered compared to all else. Can always restat at cap back to melee though.