There's a lot that comes flying at Frost all at once, and he's clearly expecting it. He wasn't just going to kill a bunch of people and not expect any payback, after all! Revenge makes the world go round.

So when the first attacks come, from Syrlya and Rin, he's already got a shield on the read and is quickly moving away. The flames smash away chunks of the shield, but the death fog seems to diminish the power of anything that flows through it - anything besides more death, at least. Zangetsu's attack has a similar effect, with Peridot's sword simultaneously sticking into the ice up to its hilt, and its enough to cause Frost to let the shield go and dart away instead.

Yuusei tries to reach him, but Frost is too high in the air for that - Papyrus's blue magic manages to tug him, though, just long enough for Rita to be fully unleashed. As he darts away, she will catch him with the crack of her fiery whip, with a force far greater than he was expecting.

He smacks into the wall with an odd high-pitched laugh and then puffs into a cloud of snowflakes.