I bought one of the heroes for fun. I was highly disappointed and of course there is no way to get your money back.
Ashbite has a huge design flaw. He basic attack radius is incredibly small and only begins outside his character model and since he is a flying unit and does not automatically position himself to engage in combat, it means he does t attack anyone actually close to him.
Again HUGE problem. This hero is a waste. The attack hit box should begin at 0 from the very center of his model to allow him to more easily attack people.
It is beyond stupid watching your hero just stand there still while there is an enemy below them.
twilight fam about Kingdom Rush Frontiers TD, v1.9.2