As we all know merc lvling has gone very tough now, since pk is enabled in Carode.

I have come up with an idea to lvl our merc.

Here it goes-
For high RB and Aura players
Friends wat we can do is we can make party in sidhe (500 pts per creep remember) of couple of aura 5 WD archers(more if possible), healers and mages (more mages more long lasting parties, later i'll explain why). Here mages will pan at creeps, archers will hit WD or simple arrows (if they have insane damage) and HKs will take creep's damage and heal party members if required.
Now why more mages? Mage carries more MP then any other char type, on hitting wd will consume more mp and since sidhe is working on rb0 stats archers might not be caring that much of mp and require refill every now n then, so archer's mp will get refilled then n there from mages n party will continue. If mage needs to refill they can go town (sidhe) n do it, it takes hardly few seconds for them to do so.
I know its a bit tedious work but we dont have any other option. If we think in a broader sense its the most effective one.
For low RB players
Its very simple, go take an RB get lvl 1 put all ur stats in dex n blood. Go on any map n do merc party no one can pk u anywhere. Once u feel like u have decent merc lvl up put ur stats as u want or use Moon Stone to buy lores.
P.S.- Adjust ur stats in such a way that u can go afk for long.
Thats all frm my side. Line is open for comments and feedbacks.

IGN- KillerBika