I'm very new to this and I thought I'd give Ubers a shot. This team's worked out surprisingly well though.
Mewtwo @ Leftovers
Ability: Pressure
EVs: 248 HP / 132 Def / 128 SpD
Modest Nature
IVs: 0 Atk
- Calm Mind
- Psystrike
- Shadow Ball
- Earthquake
Strong psychic type...