Papyrus totters a bit from the sudden shock. Fortunately, his magic defense allows him to withstand the attack... decently, at any rate. Shaking himself off, he turns to Serge. Given his current struggle, he seems like a good target to focus on, but what to do?

Attack with more bones, or something more... experimental?

Rather than launch another barrage, Papyrus whops up a Concocterest, mixing and matching chemicals before hurling the concoction at Serge. And as luck would have it, this batch delivers a sudden boost of speed!