Tyranitar Mega Evolves into Mega Tyranitar. Tyranitarite, the Mega Stone needed to Mega Evolve Tyranitar, can only be obtained in Pokémon X. When Tyranitar Mega Evolves, its Attack and Defense both increase. The Sand Stream Ability is triggered when Tyranitar enters battle, and it also triggers when it Mega Evolves into Mega Tyranitar.
The red parts of its torso seethe with energy, enabling Mega Tyranitar to emanate even more power.
Mega evolves from Tyranitar, which is only found in Pokemon Y.