"Cat Noir, NO!"
"This is the only way, Bugaboo."
"You need a sacrifice before the checkmate. Besides, I have faith you'll fix everything."
"Minou-"
He scratched her chin with his fingers, just as she used to do him for years.
"I don't know if the Miraculous Ladybug can restore absolutely everything-"
"Just finish the job, little bug."
An affectionate squeeze at her shoulders. Then the Black Cat made his final stand.
He glared at the man before him, a moth with dirt all over his name. Cat clenched his teeth and raised his arm. "CATACLYSM!" he roared, putting all his energy into the single ball of destruction that rested within the palm of his hand.
A risky move, since this would drain him of all abilities to defend himself afterwards. But he had full faith in his lady.
He aimed his power toward Hawk Moth. Throwing Cataclysm had become one of his ability upgrades, and he sent a first dart of energy to destroy Hawk Moth's staff. A second, more concentrated ball was flung and landed right behind the villain. No escape for you, Butterfly Face.
The moment the balls of energy left his palm, he felt himself become devoid of strength. He couldn't pick himself up, and couldn't save himself as the bridge beneath his legs collapsed, sending him to the bottomless abyss.
Ladybug had taken his place and was currently ambushing the man with all the skills she had learned over the past three years. Cat grinned at his partner. She'll end Hawk Moth once and for all.