FireZTran + Mega Zamzam

Alakazam-Mega @ Alakazite
Ability: Magic Guard
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Focus Blast
- Shadow Ball
- Recover

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 84 HP / 148 Atk / 80 Def / 196 Spe
Jolly Nature
- Earthquake
- U-turn
- Stone Edge
- Explosion

Heatran @ Firium Z
Ability: Flash Fire
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Magma Storm
- Earth Power
- Taunt
- Stealth Rock

Celesteela @ Leftovers
Ability: Beast Boost
EVs: 252 HP / 28 Def / 228 SpD
Sassy Nature
- Heavy Slam
- Flamethrower
- Leech Seed
- Protect

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 252 HP / 144 Def / 60 SpD / 52 Spe
Calm Nature
IVs: 0 Atk
- Moonblast
- Scald
- Taunt
- Defog

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Leech Seed
- Spikes
- Protect
- Power Whip