>>24536015Because Dark Aura + STAB makes it to have a strong priority in Sucker Punch, and unlike Talonflame, it has 133 Atk, that means it hits stronger. Also its signature move, Oblivion Wing, is very different to moves like Drain Punch and Giga Drain because it heals 75% of damage done instead of 50%, which means a bulky Yveltal is a challenge to take down if you don't have a bulky Pokemon.
