▸ Separate them

Split the party. Put foes or obstacles between them. Have someone fall behind. Have a follower or other NPC go missing. Send someone tumbling down the slope, taking them out of the fight. That sort of thing.

This move often pairs well with put them in a spot. Because what's worse than being in a spot? Being alone in a spot.

"Blodwen, after maybe twenty minutes of pushing through the tall grass, you all get a little spread out and you realize you can't see anyone else. At first you can hear them so no big deal, but then the sound of them moving through the grass is lost in the constant wind. What do you do?"

"Oof. Yeah, as you give her your spiel she's kind of stone-faced, no response. Then there's this pause, and she sorta gasps and sobs and then come the waterworks. 'Dammit, Caradoc.' And she turns and slams the door and you can hear her weeping. What do you do?"

"Okay, cool, so Vahid you're a bit further down the hall, right? With Lowri holding the lantern for you? Well, as you start to make out the runes—something about 'portal' or 'doorway' or maybe 'road'—there's this CUH-CLUNK that you feel in your chest, everyone does, and then a screeching metal-on-metal sound and this steel curtain drops from the ceiling, cutting off the hallway. BOOM. Vahid, you and Lowri are on the far side of it, by yourselves, dust billowing all over. What do you do?"