Transform your enemies into something else? Or transform yourself into select enemies or than just the bat and diggle?
I'd be for a new type of enemy that could transform you temporarily. Like how I expected the Djiin to do when I first fought one.
more along the lines of a skill class that transforms you into different things the more you level the class the more things you could transform into and each one would be stronger than the last
I like that idea. Maybe have each one have a specific special skill about it so they aren't completely useless once you get the next rank. Like rank 1 is a potato where you damage is changed to asphyxiate/acid, 2nd is a gnome with a teleport...last might be something with a big AoE or drill ability.
I was thinking more like just one would be more powerful than the next but specific abilities might be cool too.