>>586620181. Calyrex-S has Tera. Also Psychic Terrain exists.
2. 100/80 defenses is far from terrible. It can tank weaker STAB Shadow Sneaks and nonSTAB Sucker Punches without Tera.
252+ Atk Dusknoir Shadow Sneak vs. 0 HP / 4 Def Calyrex-Shadow: 288-340 (84.4 - 99.7%) -- guaranteed 2HKO
Calyrex-S is only “frail” when you compare it to other Ubers and even then its only a bit frailer than Palkia.
252+ Atk Choice Band Rillaboom Grassy Glide vs. 0 HP / 4 Def Calyrex-Shadow in Grassy Terrain: 226-267 (66.2 - 78.2%) -- guaranteed 2HKO after Grassy Terrain recovery
252+ Atk Choice Band Rillaboom Grassy Glide vs. 0 HP / 4 Def Palkia in Grassy Terrain: 187-222 (58.2 - 69.1%) -- guaranteed 2HKO after Grassy Terrain recovery
