Best character to use avalanche oskill

I want to make buld, that rely on avalanche oskill. What character is the best?

Caster imo

Yep, capitan Obvious, lol. But almost every character can be specked as a caster. for Example Barbarian, you can use gurdians bloodlust to boost your spell damage. I guess that it should be a character that can get as much as possible %spell damage from skills. What character it is? Barb? Necro? Sorc? Pally?

Sorc with fire tree buff skill, spell dmg uberskill, armor with fiends, bl on swap, motw on merc.
Good enough?

Yep, but why it will be better than Necro with jinn or than pally with solar flare?

what the mechanic of avalanche, i forgot which was it.

Because you stand 10 screens away?

Hmm... I need to try it. Thanks for advice.

amazon can use avalanche nicely too you know...barb can be great with it, but sorc definetly is the choice along the pally. Just to remind you guys...

Better char use oskill avalanche its pally.
With skills passives stormlord - superbeast gives more cold spells damage. Emphassy gives negates resistance for enemies. Plus, you invest more pts in energy to get more damage. Otherwise, you can buy merc act 5 to give you mark of wild aura it grants more spell DMG. Make sure equip him well. That's unholy caster pure. But you can play new.holy caster cause they are awesome. My opinion, I will play paladin unholy caster with avalanche.