Of course we're going to complain about the team. It's our job, isn't it?
Replace Dialga and Palkia with dusk mane Necrozma for swords dance and primal Kyogre for better stats. Give Kyurem a choice scarf to outspeed more stuff. Replace its ice burn, flash cannon, and dragon pulse with ice beam to not require charging, earth power to cover fire, rock, and steel, and draco meteor for more power. Give Marshadow a life orb for an instant power boost and 252 Atk/4 SpA/252 Spe naive to raise special attack slightly. Replace its drain punch and acrobatics with close combat for more power and ice hidden power to cover flying. Teach Mewtwo calm mind to raise special attack, psystrike to hit specially defensive Pokemon, ice beam to cover common Pokemon like Yveltal and ground Arceus, and fire blast to cover bug and steel. Give Groudon 252 Atk/4 SpD/252 Spe adamant to outspeed more stuff. Replace its earthquake, brick break, and thunder punch with precipice blades for more power, stealth rock to hurt stuff on the switch, and rock polish to raise speed and possibly sweep.
