I've already detailed this set in my RMT and used this Tangela in my recent Warstory, but seeing as it's the first set I've ever created that I honestly think belongs in this thread I'm going to post it anyway I present to you...
Volt-Turn Stopper Tangrowth
Tangrowth (F) @ Leftovers
Trait: Regenerator
EVs: 252 HP / 120 Def / 136 Spd
Bold Nature (+Def, -Atk)
- Knock Off
- Giga Drain
- Hidden Power [Fire]
- Sleep Powder / Stun Spore
This Tangrowth is specifically to give Volt-Turn using players massive headaches. The idea is to get Tangrowth in against a Volt-Switch user and hope that they switch to a U-Turn user, thinking the Super-effective damage will work for them. Here's a hit; it won't. Even Banded Scizor U-turn fails to come close to KOing it. Better yet, it can heal off damage it takes by switching, which is the very action that Volt-Turn usually uses to its advantage. The Speed evs given let it outspeed uninvested Base 65's... Scizor in particular. While HP fire isn't an OHKO, it does enough to severely limit its use for the rest of the match. Knock Off and Sleep Powder allow you either incpacitiate or cripple switch ins, further frustrating Volt-Turn's reliance on momentum to win. Giga Drain allows it to hit Rotom-W if it stays in and gives it some recovery outside of switching. This set functions best with another Pokemon that can switch in and out of U-Turns all day, such as my Rest-Talk Gyarados. It functions well against teams other than Volt-Turn as well, as it is an incredibly sturdy physical wall even without full investment in defense. With the EVs shown it will never be 2HKO'd by Life Orb Terrakion, a feat few Pokemon can manage. Hell, what with it's recovery from switching you can even use it to scout which move a choiced physical attacker is using then switch out to a counter with minimal loss of HP. All and all, Tangrowth is a vastly underestimated phsyical wall and great anti-meta Pokemon in the current metagame.
Volt-Turn Stopper Tangrowth

Tangrowth (F) @ Leftovers
Trait: Regenerator
EVs: 252 HP / 120 Def / 136 Spd
Bold Nature (+Def, -Atk)
- Knock Off
- Giga Drain
- Hidden Power [Fire]
- Sleep Powder / Stun Spore
This Tangrowth is specifically to give Volt-Turn using players massive headaches. The idea is to get Tangrowth in against a Volt-Switch user and hope that they switch to a U-Turn user, thinking the Super-effective damage will work for them. Here's a hit; it won't. Even Banded Scizor U-turn fails to come close to KOing it. Better yet, it can heal off damage it takes by switching, which is the very action that Volt-Turn usually uses to its advantage. The Speed evs given let it outspeed uninvested Base 65's... Scizor in particular. While HP fire isn't an OHKO, it does enough to severely limit its use for the rest of the match. Knock Off and Sleep Powder allow you either incpacitiate or cripple switch ins, further frustrating Volt-Turn's reliance on momentum to win. Giga Drain allows it to hit Rotom-W if it stays in and gives it some recovery outside of switching. This set functions best with another Pokemon that can switch in and out of U-Turns all day, such as my Rest-Talk Gyarados. It functions well against teams other than Volt-Turn as well, as it is an incredibly sturdy physical wall even without full investment in defense. With the EVs shown it will never be 2HKO'd by Life Orb Terrakion, a feat few Pokemon can manage. Hell, what with it's recovery from switching you can even use it to scout which move a choiced physical attacker is using then switch out to a counter with minimal loss of HP. All and all, Tangrowth is a vastly underestimated phsyical wall and great anti-meta Pokemon in the current metagame.