"Aspiring" since I haven't finalized it yet.
also, because I don't really know what I'm doing.

here's more or less what I've been messing around with as a Gym Leader in my home league. There are a few qualifications:

-has to be steel-type
-no legendaries
-I play in the OU tier so there's that as well.
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Scizor (Scout/Sweep)

215 Spe | 252 Atk | 41 HP

Life Orb | Technician | Adamant

~ Swords Dance
~ Bullet Punch
~ Superpower
~ U-Turn

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Skarmory

252 HP | 200 SpD | 56 Def

Leftovers | Sturdy | Careful

~ Stealth Rock
~ Roost
~ Toxic
~ Brave Bird

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Ferroseed

252 HP | 88 Def | 168 SpD

Leftovers | Iron Barbs | Relaxed

~ Spikes
~ Leech Seed
~ Thunder Wave
~ Power Whip


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Metagross

52 HP | 252 Atk | 204 Spe

Air Baloon | Clear Body | Jolly

~ Agility
~ Meteor Mash
~ Earthquake
~ Ice Punch

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Lucario

4 HP | 252 Atk | 252 Spe

Life Orb | Inner Focus | Adamant

~ Swords Dance
~ Close Combat
~ ExtremeSpeed
~ Crunch

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Magnezone

36 HP | 252 SpA | 220 Spe

Air Balloon | Magnet Pull | Timid

~ Substitute
~ Thunderbolt
~ Hidden Power Fire
~ Flash Cannon

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So what say you?