Tyranitar is not only one of the most powerful Pokemon introduced in the second generation, but is also one of the most powerful non-legendary creatures. Nicknamed the armor Pokemon in the anime series, Tyranitar has high base attacking stats in the game. While this makes them inherently dangerous, the Pokedex entries explain what Tyranitar can actually do.
Tyranitar is powerful enough to change landscapes and crumble mountains, which means it could do even more damage to other Pokemon or anything that is man-made. Also, it has been described as being unharmed by most attacks. There isn’t much that can take a Tyranitar down.