Possibilities:
Cleric2 -> Krivis2 -> Sadhu -> Druid-> Plague doctor
Pro: OOB
Cons: OOB Nerf LOL
Cleric2 -> Krivis2 -> Krivis -> Druid-> Plague doctor
Pro: More DPS
Cons: No new skills to lvling 
Cleric2 -> Krivis2 -> Paladin-> Druid-> Plague doctor
Pro: New buffs and turn undead
Cons: Just one rank, maybe not enough…
Any thoughts? Please help 
