Again the skin on his back is shredded, revealing perfect green scales. The knives can't possibly stick deep enough to cause any internal damage.

More laughter as he considers changing forms here and now. But nah, he can do this without a full change. At least it was a challenge!

He yanks his arm away the fridge, good and hard. Another strip of skin falls away revealing even more scales underneath. It doesn't matter to him. He can get Prism to heal him later.

Now that he has two hands he can cast a better spell. Another cackled draconic word sends a sheath of acid up, wrapping around his body. Anything touching him will most likely disintegrate upon contact with his new full-body acid-armor.

As such, he places a hand against the fridge, hoping to melt/disintegrate it.