Competitive Pokemon: Ferrothorn

Here's my Ferrothorn's summary.
Nature: Relaxed Nature
Held Item: Rocky Helmet
Ability: Iron Barbs
EVs: 252 HP / 88 Def / 168 SpDef
-Power Whip
-Gyro Ball
-Stealth Rock
-Leech Seed

Ferrothorn is a consistent setter of Stealth Rock because of its great bulk and ability to beat common entry hazard removers, such as Latios, Latias, and Excadrill. Leech Seed gives Ferrothorn a way of recovering health and is a must on every Ferrothorn set, as it lacks reliable recovery. The damage Leech Seed does is also useful for chipping away at the opponent's health. Gyro Ball is Ferrothorn's primary choice for an attacking move due to its high power and very low speed that it can take full advantage of. But is generally preferred in the last slot so that Ferrothorn can deal with Substitute users and Bulky Water and Ground-types. Ferrothorn appreciates all the recovery it can get as it has no form of instant, significant recovery. 

The given EV spread with a Relaxed nature lets Ferrothorn fare well against both physically and specially oriented opponents. 168 Special Defense EVs give Ferrothorn enough special bulk to survive most tons of special attacks outside of Fire-type attacks. Rocky Helmet is a good item for Ferrothorn to have, as it can increase the damage opponents get when they suffer from both Iron Barbs AND Rocky Helmet. 

Of course Ferrothorn can run a variety of other moves. Here are some suggestions: 
-Spikes lets Ferrothorn heavily pressure defensively oriented teams, which it can't do when running Stealth Rock. Normally I'd choose Stealth Rocks over Spikes, but because of its ability to take on common hazard removers, Ferrothorn is also one of the best defensive Spikes setters. Ferrothorn can actually opt to run BOTH Stealth Rock and Spikes on the same set, which is effective as Ferrothorn gets opportunities to set up hazards on many common Pokemon and doesn't really need any of the moves in the last slot, though this does put a lot of pressure on Ferrothorn. It's generally only used on more offensively inclined teams that can't fit Stealth Rock elsewhere and are using Ferrothorn for its defensive and supportive traits.
-Protect in tandem with Leech Seed grants Ferrothorn even more recovery and can scout the opponent's next move. Ferrothorn appreciates all the recovery it can get as it has no form of instant, significant recovery and can scout out the opponent's next move.
-Thunder Wave is a nice status option if you to cripple common switch-ins to Ferrothorn such as Mega Charizard X, Mega Charizard Y, and Heatran.
-Knock Off is yet another option to annoy common switch-ins by removing their item, such as Leftovers or Life Orb.
-Leftovers is another preferred item for Ferrothorn, as it heavily appreciates the added recovery in addition to Leech Seed. 


Do you have your own Ferrothorn moveset and strategy? Comment below with your moveset!