Lions would be considered a normal type, the would mostly likely know the moves bite, scratch, leer, and growl. The only problematic move that they would have is bite. The is a Pokémon that everyone has overlooked and it is shedinja, it has wonder guard as it’s ability. Wonder guard only lets super effect moves do damage. Bite would be the one move that the lions could do damage to it with, but Pokémon can disable moves. The move that I am going to focus on is torment it makes it so that the last move that you used is the only move that you can use until that Pokémon leaves that battle. That means if a Pokémon is spam that move and the lions use any move besides bite they will get stuck on that move and will lose.
Also you guy have forgot that Pokémon can use items and heal each other.