They've been rumbled. Keep him talking and look for an opportunity to snatch it back.

Joker draws her dagger. "It's not yours to keep, oh almightly king. Your crown rests on the abuse of all your subjects. You're no king, only a self-righteous bully!"

"What a selfish misunderstanding."

"A misunderstanding? I've seen your subjects, oh King. Some of them fight by my side. Are you so blind as to ignore that?"

He sneers. "Pathetic brats who couldn't bear the cost of following through. The cost of getting the piece they wanted of my success."

"The price of success!?"

You know the cost you bore far better than this false king. It was not his right to take that from you. 

Paladin pulls her spear from her back, clenching the haft tightly in her gauntlets.

"You beat me, you planned to rape me, you beat and threatened the people I love—"

The butt of the spear slams into the floor on the word "love", resounding through the hall.

"And you dare to call that the price of success!?"

She levels the spear at his face, a feral snarl stretching across her face.

"Your reign will end, Kamoshida."

He's distracted —

Joker whips her grappling hook out of her sleeve and throws, aiming to hook the crown in its tines.

The king sees this happening—

And resizes the crown back to its full size just as the hook loops all the way around. Now it weighs more than Joker does.

Joker's already pulling hard on the cord, trying to yank the crown free. She lurches forward against the crown's weight and barely keeps her feet under her — but she plunges toward Kamoshida. 

Panther leaps forward to protect her leader, and instinctually lashes out with her whip —

Kamoshida kicks Joker away from him, sending her flying into Ann.

"Fine then! I'll execute you brats myself! I am the demon that rules this world!"

He arches his back inhumanly, a menacing laugh booming from his throat. He removes the placeholder crown and sets the treasure atop his head, and his form begins to stretch and distort.

Two enormous goat horns sprout from his head as his skin turns unnaturally pink and his body stretches up to what hast to be at least twenty-five feet tall, sitting down. A second pair of arms sprouts below the first. In his upper right hand he holds a glass of wine — the cognitive copy of Ann can be seen within. Upper-left holds a riding crop. The lower two hold a golden fork and knife. His eyes roll madly around in his head, and an easily twenty-foot-long purple tongue stretches out of his jagged, distorted mouth.

"I'm allowed to do whatever the hell I want!"

"What the fuck, you really are a demon, Kamoshida! We're puttin' a stop to your bullshit!"

Panther and Joker go down in a tangle of limbs, and take a moment to get back into the fight.

Joker hauls herself back up and sees the monstrosity that Kamoshida's become. 

"Ugh." Of course this asshole has to make it difficult. 

Panther gets to her feet as well. 

"Knew it," she mutters. "Bastard."

Paladin just glares.

Kamoshida roars at the Thieves. "Haven't you brats ever learned not to point and stare?"

He slashes at them with his golden knife.

Joker leaps out of the way and ducks behind one of the pillars in the hall, flattening herself against the stone column.

Skull scrambles behind the same column, shoulder to shoulder with her.

Paladin tackles Panther and Mona out of the line of fire in the other direction.

Kamoshida slashes at the column Skull and Joker are hiding behind, frustrated at missing the Thieves.