10 Mana per attack while active. A sustained mode then, i see.
The damage is huge actually.
About plate. Mages, as you know, can wear heavy armor in 2 ways.
Actual heavy armor, that is about mid game, or depends on your progression actually, but thing is, schematics for plate for Mages comes at certain points.
OR, light Mage armor, that uses cloth ingredients but looks heavy. It's like the Inquisitor from the PAX East 2013 August demo. Plate but not full plate, and without huge armor value.
It's pretty obvious that:
1) With upgrades to Barrier, with Guardian Spirit, Ice Armor, certain Spirit and Storm passives, and the abilities of Knight Enchanter, you are not squishy at all, as some falsely assumed. You are pretty much invulnerable if you play it correctly.
You have that beast as a Qunari, +10% melee damage reduction, with the ability to REFLECT back ranged attacks as a simple sustain with 10 mana per attack(!), without having seen the last ability and some more, guys, this is a Beast.
I personally loved it, and will go full heavy on armor as soon as possible, with a "robed" plate look for aesthetics. Obviously, i will wear plate wherever i get the chance, even if it seems more light at start.
Something like Nazgul style while going Gandalf Style.
The only thing i would improve, is the visual of the Spirit Blade. I'd like to materialise it completely in my hand, for as long as the toggle is on, and run around with it.