Seeing a ttar is rare, and it has uturn so it can get out of those situations. TTAr is at 7% usage, and if u go 1825 its around 5%. Ttar-mega? ~2% Not even remotely close to invalidationIt is a very anti-meta Pokémon, yes. But Xatu has one main problem that almost all psychic-types have: And that is pursuit-trapping. Even Reuniclus, which is a very good Pokémon in OU right now, does find itself struggling with that form of trapping, which is why I think Tyranitar is quite frankly amazing in this meta. Both Mega- and Choice Band Tyranitar invalidate almost all sets of almost all psychic-types.