Metronome Mamo+Z-Victini+SD Terrakion

Mamoswine @ Metronome
Ability: Thick Fat
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Icicle Crash
- Ice Shard
- Stealth Rock

Venusaur-Mega @ Venusaurite
Ability: Thick Fat
EVs: 248 HP / 88 Def / 156 SpD / 16 Spe
Calm Nature
IVs: 0 Atk
- Giga Drain
- Leech Seed
- Sludge Bomb
- Toxic

Victini @ Normalium Z
Ability: Victory Star
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Celebrate
- Stored Power
- Searing Shot
- Thunderbolt

Latios (M) @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Draco Meteor
- Psyshock
- Trick
- Ice Beam

Terrakion @ Lum Berry
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Stone Edge
- Close Combat
- Substitute

Zapdos @ Leftovers
Ability: Pressure
EVs: 248 HP / 240 Def / 20 Spe
Bold Nature
- U-turn
- Roost
- Discharge
- Defog