Pokémon X and Y Playthrough Discussion

I thought Gardevoir was bad at taking attacks.

She's tanking Mewtwo's Aura Spheres and Psychics without even breaking a sweat at the moment.

First Mewtwo had pretty much perfect IVs for a X (31 HP/Attack/Speed) and was caught in just under 10 turns with a Dusk Ball, but since I'm playing Y...

Come to think of it, I should've kept it and traded with someone for a 31 ?/Sp. Atk/Speed Mewtwo. Oh well.

EDIT: Got it. Modest with 31 Sp. Atk, Sp. Def, and Speed. Also has 29 Attack. HP is 14/15 and Def is 15. This one's a keeper for sure.

And wtp the Ralts Diantha trades you has 31 Sp. Attack and Speed IVs along with Modest. orz