You know what pokemon could be fun this meta? Hoopa-U.
Screw-U (Hoopa-Unbound) @ Life Orb
Ability: Magician
EVs: 4 HP / 252 Atk / 252 SpA
Brave Nature
IVs: 0 Spe
- Trick Room
- Hyperspace Fury
- Psychic
- Gunk Shot/Drain Punch
Basically, the idea of this set is to see what your opponent's strategy is, and ruin it. Are they using very slow pokemon to abuse Trick Room with? Ruin their Trick Room setup with your own Trick Room. Are they using faster pokemon that wouldn't like Trick Room? Set up Trick Room on them. Because of Hoopa-U's below average speed stat, it will be faster than slow Trick Room pokemon without TR, and faster than speedy pokemon with it. Of course, the rest of your team should probably have around the same speed as Hoopa-U to also make use of this counter-strategy. After you have set the Lockdown in your favor, blow holes through your opponents' teams with Hoopa-U's powerful moves. Ggwp.