Umm.
Like Flora said Electrode or Uxie.
Uxie has Rocks and U-Turn but Electrode has the benefit of not being Taunted and can Taunt himself.
I'm going to list options as I really don't do RD teams much.
LO Gorebyss (Hydro Pump, Psychic, HP Grass, Ice Beam)
LO Omastar (Hydro Pump, Ice Beam, Earth Power, HP Grass)
LO SD Kabutops (Stone Edge, Waterfall, Aqua Jet, SD)
Sub Punch Croak/ SD Croak (Helps deal with Registeel and Milo who like fuks RD teams)
LO / CB RELICANTH (Head Smash, Waterfall, Earthquake, Stone Edge/Double Egde)
LO SD Ludicolo (better then Special version imo) (Seed Bomb, Waterfall, SD, Ice Punch)
And for support, Rotom, Registeel, Mesprit?