Your best bet is likely a chaplain build with cleric/kabbalist or krivis/kabbalist. As they are incredibly sturdy in pvp.
But frankly kabbalist works well on almost any build, you could even grab a monk build and replace monk3 with kabbalist.
Or even a more generic spellcaster that ends with kabbalist. Though do keep in mind that bokor only shines in 2vs2 pvp atm.
Lots of options really.
Druid mostly shines due to telepath, which allows them to control 1 enemy for a small duration. You can lure them into your aoe’s or simply disbable the enemy healer that way when he’s most needed. (They should only take dmg when it ends, but it’s still very good.)
@dudu_carvalho:
It’s damage is very nice, but the issue is that it needs to sacrifice zombies to deal dmg with in the first place. And in places like ET the preference is on continuous dmg effects like elementalists and carve owls due to how much health enemies have.
I fear mob health will start to out-scale it’s dmg beyond that point tbh. But it should be good enough for most content prior to ET or 3 star maps probably.
@Sixaxis is more knowledgeable on this topic though, better to wait for his reply.