We had a buff NPC at the very very start of the server, it gave level 5 bless, agi and kyrie for 5k if I recall. But eventually we removed it because it bugged and after a while we just felt we were better off without it alltogether. Party with priest/aco/monk for buffs, and ask a sage for endow or purchase converters from them ^_^
Isn't a Buff NPC pointless anyway? It's been my experience that when someone Buffs you in town, it wears off by the time your reach your destination anyway. =p
Encouraging partying in this game is something that's hard to do sometimes
Don't make it any harder for some classes *sage especially* to get into parties.