Regigigas @ Leftovers
Impish (+Def -Satk)
Hp252, def252, 4spdef
~ Knock Off
~ Return
~ Thunder Wave
~ Fire punch/ice punch
Defensive/utility behemoth. spamming Knock offs always annoys, specially versus those wanna-be roarers who get prived of their leftovers. Twave is to cripple the speed and actually outspeeding even under slow start ( and useful parahax ). Return for STAB, Fire/ice punch suprises a lot of ferroseeds/gligar who think they are so smart to try to setup on the face of a regigigas in the case of the former. Gligar is still faster than you , though.
All of the eviolite pokes running rampant through RU get prived of their precious items, giving a chance for the rest of the team to break through them. When Regi "gets it going", one or two opposing pokes are sure severely crippled and/or fainted, if played correctly. At the very least
Toxic-immune partners are advised, aswell as those who don't mind ( or enjoy, via flash fire ) an incoming will-o-wisp from the foe's pokemon
Beware of:
-unburden pokes who might actually enjoy the knock off
-gligar or ferroseed, depends of the punch of choice. Either way, the only thing you can do to them is knocking off their eviolites, and switch out to a proper counter
-misdreavus.
-Any fighting poke will pose a serious threat
Special dangerous threat:
Hitmonlee. You cannot know if they are limber, or unburden, and with dat STAB, Regigigas' days will be numbered.