enter mega latias

Latias-Mega @ Latiasite
Ability: Levitate
EVs: 252 HP / 4 Def / 252 Spe
Timid Nature
IVs: 0 Atk
- Calm Mind
- Roost
- Stored Power
- Thunderbolt

Dugtrio @ Groundium Z
Ability: Arena Trap
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Screech
- Pursuit
- Toxic

Marowak-Alola @ Thick Club
Ability: Lightning Rod
EVs: 120 HP / 252 Atk / 4 SpD / 132 Spe
Adamant Nature
- Swords Dance
- Shadow Bone
- Fire Punch
- Bonemerang

Landorus-Therian @ Rocky Helmet
Ability: Intimidate
EVs: 252 HP / 240 Def / 16 Spe
Impish Nature
- Earthquake
- Gravity
- Stealth Rock
- Hidden Power [Ice]

Mantine @ Leftovers
Ability: Water Absorb
EVs: 248 HP / 244 Def / 16 SpD
Calm Nature
IVs: 0 Atk
- Defog
- Scald
- Roost
- Toxic

Magearna @ Choice Specs
Ability: Soul-Heart
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Volt Switch
- Flash Cannon
- Fleur Cannon
- Aura Sphere