The creature's response was to tilt his head in confusion. Cadance awkwardly chuckled when she remembered that he didn’t speak Equish and thus didn’t understand a single thing she said. After repeating what she said several times with some hoof gestures thrown in, the creature seemed to understand the vague outline of the agreement my wife was proposing: Food, shelter and a way around the language barrier in exchange for help with Sombra. The two shook on it.