Crit Toxicroak
Toxicroak @ Scope Lens
Ability: Dry Skin / Poison Touch
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Cross Chop
- Stone Edge
- Cross Poison
- Swords Dance
Here is another version of the SD set, but this time the aim is to land crits more often than not. This set lacks the outright power of a Life Orb and instead holds the Scope Lens to boost the crit chance of 3 high-crit moves without the recoil. Dry Skin is normally the ability, and makes Vaporeon set-up fodder, but I think Poison Touch should at least be considered - 30% poison chance is not small - as even if you don't manage a KO you force the target to suffer some residual damage which will help this or something else KO it later on; note Stone Edge doesn't make contact for this to happen, but Cross Chop and Cross Poison do, on top of the latter's small chance to poison.
Here are 2 calcs against a couple hopeful switch-ins:
+2 252 Atk Toxicroak Cross Chop vs. 252 HP / 252+ Def Gastrodon on a critical hit: 390-459 (91.5 - 107.7%) -- 50% chance to OHKO
+2 252 Atk Toxicroak Cross Poison vs. 252 HP / 252+ Def Vileplume on a critical hit: 237-280 (66.9 - 79%) -- guaranteed 2HKO after Black Sludge recovery