You guy must forgive the OP, I think the guy don't understand all his classes.
Here is a test to confirm it.
@ OP. For the sake of the test to be successful, try separate your mage from your 3 companions and use your mage to solo the next fight and tell me if they're overpower.
Write down how many time you able to cast your damage spell with 100% hit rate before you're pound to the ground and left for dead
