It looks like everyone else has gotten the "raw firepower" part of things settled, so Joker won't put himself into that part of things as he lets go of Yuya and Amethyst. Instead, he'll do exactly as he did in his first meeting with the Rose Queen as his wings propel his steps faster to meet her before coming to a stop and flaring them out- get her attention. He'll be the distraction, if everyone else can handle Steven.

"Rose Queen, as his Guardian Angel, I challenge your claim to Steven Universe," he announces boldly, remembering what Lambert had told him. "Your blood is not enough- not to outweigh the negligence and cruelty that you have wrought against your own child, and not enough to outweigh the blood of our own covenant!"