
Role: Counter
Feraligator @ Life Orb
Ability: Sheer Force
EVs: 252 Att / 4 Def / 252 Spe
- Dragon Dance
- Waterfall
- Crunch
- Ice Punch
So your opponent sends out Gliscor which will force a switch cause your mom can't handle him so you switch to Feraligator. The opponent knows you'll switch so (s)he uses SD to get ready. Next turn Gliscor hits you with an EQ (although most people would have the sense to switch):
+2 0 Atk Gliscor Earthquake vs. 0 HP / 4 Def Feraligatr: 205-243 (65.9 - 78.1%) -- guaranteed 2HKO
From here you can either one shot them with an Ice Punch:
252+ Atk Life Orb Sheer Force Feraligator Ice Punch vs. 248 HP / 112+ Def Gliscor: 359-426 (101.6 - 120.6%) -- guaranteed OHKO
Or set up with a DD then go first next turn and take them out with Ice Punch or Waterfall:
+1 252+ Atk Life Orb Sheer Force Feraligatr Waterfall vs. 248 HP / 112+ Def Gliscor: 429-507 (121.5 - 143.6%) -- guaranteed OHKO
Personally I'd use a DD.