I agree with both of you in some point.
I agree that Kurian class is kinda OP already, but it's a class that doesn't atack well as the others.
And I've played a Private server that I used to play as kurian, And with few mage staffs I was down.
each class has ur weakness...But I really agree that It should have a lil bit longer devil transform.That won't make it immortal, just gonna make it a
very strong defense class, but still, weak against mages!