Jaw fossil or sail fossil in pokemon x?

Aurorus has a big HP stat though, so special attacks don't hurt it as much as the typing suggests. It's physical fighting and steel moves that wreck it. If you like weird defensive mons it's fun, just not easy.

Jaw gives you Tyrunt, which becomes Tyrantrum, rock/dragon and hits really hard. Sail gives Amaura, which becomes Aurorus, rock/ice and pretty fragile. It's 4x weak to both fighting and steel, and you'll see plenty of both. For a playthrough, Jaw. You only get the one, so you'd have to trade for the other.