I will point out that you're more likely to make more things if you try and do the prince thing. Since I'm assuming he can destroy nothing like Roxy could steal the fact that something... wasn't.
Actually, both are true. He can destroy the void to create objects, but he can also destroy
using the void, which has the ability to just obliterate his enemies from existence. Granted, he will have to god tier to be able to use this ability, but when he does, everyone would be screwed if they try to fight him. However, if he enters the session he is going to, then he will instead become
Lord of Void, wherein he will become the embodiment of the Void, meaning nothing normal and most supernatural cannot harm him, and he would be able to manipulate the void to do whatever he wants. Fighting him, you better be damn sure what you are doing.
Curl up, ready to pounce, but wait to actually do it until one of the imps drops their guard to attack, timed to interrupt their action. Again, if I land on them then rake them repeatedly with my claws while they're down. If they dodge, then swipe at them once as I leap away to try again. If they don't give me an opening when they attack because they have high-quality combat stances, then leap away from their attack and maintain my distance until I get a good shot at them. If my claws catch on them then drag them to the floor with it and keep twisting them about with my claws in their flesh, rakeing them with my other claws while they're down, similar to if I'd pounced on them. If one of them is dumb enough to go near the balcony and I get an opportunity to do so, then hurl them off and let gravity do its job.
Preparing for everything? I approve, may a metric ton of damage dealt be yours.