POV Vesuvius:
The dragon was falling from the sky like a large boulder, a crust of stone spreading all over his body, immobilising his joints and turning his wings into bricks.
He pushed his mana through his veins and bones, his whole body heating up like a furnace. At the same time, a magical circuit flared up in his mind.
The air around him whistled as the ground slithering with massive snakes was quickly getting closer and closer, their snake eyes glowing brightly as they waited for their feast while hissing.
Suddenly the dragon's falling body ignited in bright white flames and the yellow stone started melting, with hot liquid dripping down.
The poison evaporated into nothingness, his mind slowly cleared up, and his vision returned to normal as all of the traces of poison quickly vanished from his body.