One thing Aylee seems to still have going for, even if this form seems to generally be outmatched by Oasis and Kusari, is her strength. Then again Oasis has been seen performing similar feats of strength, so it's not clear Aylee has the advantage there either.

It seems to me to be fairly clear that Bun-bun (being the god of electricity or something) could have done that at any time, whenever he wished to, but waited until he made a deal wherein he gets paid for doing it.