Thievul @ Choice Specs
Ability: Stakeout
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- U-turn
- Psychic
- Dark Pulse
- Burning Jealousy
Foxy here can kill the Kangaroo before it can even cause chaos with its Stakeout boosted Dark Pulse. Unfortunately, its sucky bulk makes it so it gets OHKO'd by Kangaskhan's Double Edge. Its technically a Counter, but according to the definition of a counter, its actually a Check.
+2 252 SpA Choice Specs Thievul Dark Pulse vs. 0 HP / 0 SpD Kangaskhan: 358-423 (101.9 - 120.5%) (+2 because of stakeout)
252+ Atk Silk Scarf Kangaskhan Double-Edge vs. 0 HP / 0 Def Thievul: 322-381 (114.5 - 135.5%) -- guaranteed OHKO
I feel like I should clarify that this isn't a check or counter since Jolly Kangaskhan outspeeds Modest Thievul and OHKOs it. Kangaskhan just can't switch directly into Thievul - however, if they are both on the battlefield in a 1v1, Kangaskhan wins, so Thievul isn't a check or counter.