Thick Fat Core.

Snorlax @ Leftovers
Ability: Thick Fat
EVs: 144 HP / 188 Def / 176 SpD
Careful Nature
- Rest
- Sleep Talk
- Body Slam
- Crunch

Venusaur @ Venusaurite
Ability: Chlorophyll
EVs: 252 HP / 160 Def / 96 SpD
Bold Nature
- Giga Drain
- Sludge Bomb
- Hidden Power [Fire]
- Synthesis

Cresselia (F) @ Leftovers
Ability: Levitate
EVs: 252 HP / 240 Def / 16 SpD
Bold Nature
- Moonlight
- Toxic
- Psychic
- Ice Beam

Landorus-Therian (M) @ Leftovers
Ability: Intimidate
EVs: 252 HP / 240 Def / 16 Spe
Impish Nature
- Earthquake
- Knock Off
- U-turn
- Stealth Rock

Azumarill @ Assault Vest
Ability: Huge Power
EVs: 40 HP / 252 Atk / 216 SpD
Adamant Nature
- Play Rough
- Waterfall
- Aqua Jet
- Knock Off

Heatra (Heatran) @ Leftovers
Ability: Flash Fire
EVs: 252 HP / 212 SpD / 44 Spe
Calm Nature
- Lava Plume
- Earth Power
- Roar
- Will-O-Wisp