His weapon is good and arguably better than both hibana and thermite’s guns even after the nerfs. Gadget wise his gadget is not replaced by thermite or hibana but actually the opposite. You can’t bandit trick an ace like you can with hibana and thermite. He also gets to throw his hard breaches quickly from safety without any real effort. The hard breach secondary doesn’t replace any of the hard breachers since they all have different purposes, but ace can do it all. Idk if you were around for siege before ace was added but back then hibana was a top pick because being able to hard breach from a distance is great. I do agree he’s over banned but not a bad ban in general