As per Generekt's suggestions, I will now answer my own question in the "Answers" section.
As the only Magic Bouncer in LC, Natu can serve a unique niche as an anti-lead as well as a support mon.
Natu @ Eviolite
Ability: Magic Bounce
236 Def / 36 SpA / 236 SpD
-Tailwind / Wish / Haze / (insert filler move here)
No rocks here, ahahaha! Reflect lets you take at least a couple of Rock Blasts, Light Screen is standard with Reflect, Giga Drain lets you hit Dwebble and Onix, two common leads, super effectively, and your choice of the last move.
EDIT: The great Natu forces a forfeit on the 4th turn. http://replay.pokemonshowdown.com/lc-204943369
Oh, and here's a sweep. http://replay.pokemonshowdown.com/lc-204984167