Geffen dungeon level 3 or clock tower? Maybe we can party and go? Priest level 56 here.

Try argiope 2 maps south of AlDebaran.
Its large monster, so spears would seem good.

I'll be honest with you. In mysg, bowling bash knight is the superior built. They're steamrolling every high level maps out there with ease. My friend created spear knight and he took such a long time to take down even just 1 monster. Delay is poor, dmg is average, can't even tank well and flee is non-existant.

okay, there is another alternative. Geographers.
They give off very, very good exp. They're immobile and since spear kniggt is ranged, it won't attack you, but it will spam heal on itself. The map is also relatively safe if u just focus on geographers.

Bad news is that the map is infested with everyone else, especially hunters and wizards.

pre transcend play hybrid knights for ease of resource. then once transcend only focus on putting in the correct stats
spear build play pierce on large type monster to be efficient, else bowling bash all the way. also having a slotted shield with particular monster type resist is very very very important.

Thor (MYSG) + Loki ( Thailand ) + Chaos ( PHRO)