Everything is moving so fast; the true fae, the... something that Tamaki can feel coming from the castle, that alien guy attacking Strange even though he just said Strange is brainwashed...

And then it looks like the angel from before (Tamaki remembers him now, though they'd never talked much) is going to try to actually do something, but then he looks unsure, frozen in the air.

"Warden!" he yells, because he remembers now, that's what Sans is. "Now is your chance to intervene!"