Exorcism (For those sticking around after the rescue)
Shit like this never happened to the A-Team. They had a crazy plan, the crazy plan miraculously worked, and Pike always liked to think they sat around with a few beers afterward laughing their asses off about how crazy that plan had been. Just once, he wanted to have that kind of luck. His crazy plans always ended with broken bones or wounds leaking way too much blood.
Or somebody getting Vader'd. Pike locked eyes with Spike briefly, tilting his head almost imperceptibly toward the trap. "Lady, don't they play those prequels at the Helleplex? You need two hours of cheesy dialogue before you force choke your best friend!" Without bothering to wait for an answer to his stupid quip, he began spewing out the exorcism. He wasn't actually trying to exorcise it, but he knew that the exorcism could, sometimes, disrupt demon powers. If it worked for even a second and Andrea was released, Spike would be able to take advantage of the opportunity and bodily hurl the demon into the trap, or so Pike hoped.
Luckily, Pike already knew Latin pretty well from back home, for research purposes, and also occasionally freaking out hypereligious people with Latin phrases about Satan. Hey, it had been a dull day stuck in a bus station next to an annoying priest, what else was he supposed to do? And since he'd had nothing to do while on bedrest from the first stabbing but study the exorcism and the diagram of the trap that Ruby and Andrea had sent him, and since he had been practicing it frequently ever since, he didn't really need a book.
He just hoped this worked, because he didn't have a fancy back-up plan. That much, he and the A-Team did have in common: There was never a plan B.