I dont have a bishop or cleric or whatever I'm basing this off of PS characters i rushed threw Lolz SO sorry if i make mistakes Levels marked with a * mean you should have extra stat points
Level 30-40 You should put heal and one on Teleport somewhere between those levels
Level 40*-46 Put it all on invincability
Level 47-54(i think)-Bless
Level 55-63 Mp eater
Level 60-70 Holy arrow
Path of a preist SOrry i'm noob at Mage guides for skills :S
Levels 70-80 SHinning ray till max
Level 81 Dispel
Level 82-92 Holy symbol
Level 93-103 Summon dragon
Level 104-109 Mystic door (if this dosnt max out use another level)
Level 110-120 IS your choice wether you get doom or elemental aplification because both are good in my oppinion