@Mathiason of course I understand that his magic might be stronger than he expected.
My issue with this is his attitude of "there are too many wolves, so I need to kill the leader asap". The guy almost sniped the boss despite a bunch of trees being in the way, surely he can just snipe the wolves around as there's less distance, less obstacles and less room to dodge.
The guy is strong enough that he shouldn't feel pressured by a bunch of low rank wolves despite their numbers, there's no excuse for that.