Precisely stats dont affect damage directly but actually Perception raises crit chance and I usually get it up to 35% or more.

But Death Punch only hits one target with one attack in one round and for like what 8AP?

With Flurry I get four attacks on one target in one round or I can (and have) hit up to 7 enemies with Whirlwind, with a 35% of double damage which was around 964+ before the crit took effect thats far more than any spell, and I havent even started to include Oath of Desecration, which I was not using until recently.