Can Kai'sa' abilities devolve?
So I'm curious from watching videos from the PBE, when you acquire the stat requirements to evolve one of Kai'sa' abilities, there's a little pop-up similar to Kha'zix after he levels his ult. What I'm wondering is what happens if you had say, 100 bonus AD, evolved her Q and then refunded the item. Does her Q revert back to its un-evolved form or is this a pseudo-exploit?
Edit: Also how does this work with the "Absolute Focus" rune? If she drops below 70% health what happens?