CurZing (Curse Weezing)
Weezing@Leftovers/Black Sludge
Relaxed
252HP/252Def/4Atk
Curse
Substitute
Gyro Ball
Payback/Double Hit/Explosion/Fire Blast/Secret Power
In the analysis, it says Weezing would be a good Curser, if it had a good physical movepool, it doesn't, but Gyro Ball is the main move, and the filler depends on what you want, which can be quit useful for some things.
As for Sub, you can shift some HP EVs to make fours Subs, the subs have two main reasons: 1st avoid status, 2nd taking random Psychics (attacks) and OHKOIng the psychic type (assuming the psychic user is a psychic type, excluding Jirachi, Bronzong and Metagross).
~Payback: Hits Gengar, Starmie, Slowbro, Alakazam..you name it with a SE100base attack if they attack you behind your Sub.
~Double Hit: Not much for coverage, but it hits Water and Fire types neutral, but most importantly breaking Subs, and OHKOing (especially if they hold Focus Sash).
~Explosion: Used to kill Blissey, to end things..you name it.
~Fire Blast/Flamethrower: to hit Skarmory/Bronzong who think they can end your curse set up, only to be 2-3KOed.
~Secret Power: just like Double Hit is hits Fire and Water types, and unlike Return, Secret Power has a 30% PRZ chance in wifi (shoddy as well).