[Squeek]

I've explained the Cleric builds. Note how all of them ignore Holy Arrow. It's a worthless skill.

Pure leveling speed:
Heal -> Teleport -> MP Eater -> Bless -> Invincible

Money-saving and fast leveling:
Heal -> MP Eater -> Teleport -> Bless -> Invincible

Support first:
Heal -> Bless -> Teleport -> MP Eater -> Invincible

I took the second path and I highly recommend it.

~Squeek