playing nin on that kind of ping sure if your not doing anything serious. I mean the mudra clipping will be awful you press one then thinking the server didn't pick up your press do it again then going off twice screwing up your ninjutsu altogether. The normal combos themselves will probably be alright, not great but passable. I would be more worried about mudras at that ping and if you can't get them going right with high ping you would be pretty screwed in terms of dps.

Unrelated Topic -

Ilan what bow are you using in your character card?