>>56812705Sorry I didn't read your post well, you only want Pokemon for your team, well I would switch Lucario with Spidops, for two reasons; spiders being common cave dwellers and because it is crucial to have extra ropes when exploring a cave.
You will also have to choose between Tyranitar and Garchomp, you don't need two giant lizards in such a limited space, it would be better to have someone who can provide you with lighting or first aid, my choice would be Shiinotic, its bioluminescence would be safe in a cave unlike a Fire or Electric that can cause an explosion with underground gases.