I think the aura that took the biggest hit with the change was leviathan, it wasn't THAT great already, and now its pretty damn impossible to get value out of it, because it's characteristics simply don't fit. New ability is cool and all, but meh. It has a weak start, depending on the "supporting cast", it's vulnerable to a lot of early waves(4-5-7-8). It's an expensive, tanky, range unit, that buffs other flying units. The thing is, there is hardly any unit that benefits from the buff. Buzz/violet run in front and die, phoenix/gargoyle dont get much out of the buff. It seems to lack an identity, because it isn't great at anything. Maybe make it a meelee fighter? Or really close range? Perhaps an ability that you toggle between meelee/range before the round? Im sure people must have other better suggestions for a change, but i think we can all agree it needs a buff.