House ruled heroes?

I'm curious if anyone has ever house ruled heroes.

I've always really Dwalin, but he's pretty weak if he's not in a deck with Leadership Dain or an Orc heavy quest.

Would it be overpowered to revise his ability to say

"After Dwalin attacks and destroys an enemy, lower your threat by 1, or lower your threat by 2 instead if the enemy has the Orc trait. (Limit once per phase)"

I'm curious if anyone has ever house ruled heroes.

I've always really Dwalin, but he's pretty weak if he's not in a deck with Leadership Dain or an Orc heavy quest.

Would it be overpowered to revise his ability to say

"After Dwalin attacks and destroys an enemy, lower your threat by 1, or lower your threat by 2 instead if the enemy has the Orc trait. (Limit once per phase)"