>>19646123The distinction between OU and UU is based on usage alone, not power. A Pokemon will only be tiered separately from its formes if said formes can exist outside of battle, otherwise those changes are counted as just one of that Pokemon's possible movesets.
The distinction between BL and UU is based on power alone, not usage. Instead of having to judge entire Pokemon species, special attention can be paid to suspicious items and moves that are thought to be "too strong" for the tier.
While both Pinsirite and Heracronite are clearly too strong for UU, Pinsir@Pinsirite receives enough usage to push Pinsir as a species past the minimum usage levels to identify a Pokemon as "Over Used", regardless of how strong non-Pinsirite Pinsir sets are. On the other hand, the total usage of Heracross with and without Heracronite falls short of the "Over Used" cutoff, so it must be considered "Under Used". However, Heracronite was found to be too strong for UU, and was accordingly banned.
