HailRoom + Skill Swap Cress

Abomasnow @ Abomasite
Ability: Snow Warning
EVs: 252 SAtk / 252 HP / 4 SDef
Quiet Nature
IVs: null Spd
- Blizzard
- Giga Drain
- Protect
- Focus Blast

Cresselia (F) @ Sitrus Berry
Ability: Levitate
EVs: 252 HP / 252 SDef / 4 Def
Sassy Nature
IVs: 0 Spd
- Trick Room
- Psyshock
- Helping Hand
- Skill Swap

Jellicent @ Sitrus Berry
Ability: Water Absorb
EVs: 252 SDef / 252 HP / 4 SAtk
Sassy Nature
IVs: 0 Spd
- Trick Room
- Will-O-Wisp
- Protect
- Recover

Scrafty @ Assault Vest
Ability: Intimidate
EVs: 252 Atk / 252 HP / 4 SDef
Brave Nature
IVs: 0 Spd
- Fake Out
- Drain Punch
- Knock Off
- Stone Edge

Rhyperior @ Assault Vest
Ability: Solid Rock
EVs: 252 Atk / 252 HP / 4 SDef
Brave Nature
IVs: null Spd
- Megahorn
- Rock Slide
- Earthquake
- Hammer Arm

Heatran @ Shuca Berry
Ability: Flash Fire
EVs: 252 SAtk / 252 HP / 4 SDef
Quiet Nature
IVs: 0 Spd
- Heat Wave
- Earth Power
- Flash Cannon
- Protect