"I'm fine though. Well, besides the frostbite, but our resident fire spirit has taken care of that for me."
And that was indeed the case, he had little to no injuries, with the only issue being the fact that he wasn't resistant enough to the cold generated by the spell as he did not possess the ice attribute.
The magic tiers shown on the status board, did not only denote how high the level of magic of a particular attribute one could use, but also how resistant to the element they were.
It was because of Evan's tier 2 status in flame magic that his arm was not burned when he covered his entire right arm in flames earlier. He was more resistant to flames, especially his own.
This was the reason why he had to overload himself with lightning and bypass his own base resistance, to gain the additional resistance from adaptive evolution.