Pokémon Black & White (be warned: spoilers)

[Maxpphire]

Pinsir dosen't need one

Yes he does. Heracross outclasses Pinsir in nearly every way possible, except in their ability. Mold Breaker is fucking wonderful, but the only move Pinsir has to take advantage of it (Earthquake) is something he doesn't even get STAB on. Nearly every other Bug Pokemon not grouped into a Butterfree esque evolutionary line is capable of being useful in a way that makes it stand out from it's counterpart. Pinsir doesn't have that with Heracross, because STAB Close Combat and STAB Megahorn as well as a neutrality to rock attacks make him infinitely more useful than a non STAB Mold Breaker Earthquake.

Even Venemoth (who tears shit up, just like Yanmega) is able to separate itself from him with slightly better typing as well as access to Batton Pass, Toxic Spikes, and Sleep Powder.

I thought Pinsir's counterpart was Syther?