An interesting Pokemon, I expect to see it a lot. Have it hold that new helmet item (Rugged Helmet), and attacking it will knock away 25% of the foes total health. Plus, it has the evr popular STealth Rock. Bug/Steel is better typing in my opinion.
Ability: Steel Thorns
EVs: Defense, Sp Def, Attack Nature: Adament
Explosion: About to be defeated? Kill everything in sight!
Leech Seed: Damage the foe even more.
Toxic: More damage to the foe. Did you know that in Gen1, Toxic made Leech Seed heal you more?
Stealth Rock/Seed Bomb: Okay, I hate using entry hazards, but they ar really popular. If you are like me though, go for Grass STAB.