I need help on deciding which Ferrothorn build is better in competitive play, this will be the first Pokemon I EV train and such, so I'm uncertain of what works, and what doesn't.
I was planning on having both leech seed and stealth rock on my Ferrothorn, but I was told that in the 5th generation it isn't possible, so instead I have two potential builds around either move-
Leech seed Ferrothorn
Ferrothorn @ Rocky Helmet
Trait: Ironbarbs
Ev's: 252 Hp, 128 Defense, 128 S.Defense
Nature: Relaxed (+Def, - Spe)
Leech seed- in lieu of leftovers, he can receive healing and instead hold the rocky helmet for physical hits
Toxic- Poisons the target
Protect- Free leech seed and toxic ticks
Gyro ball- I'm under the impression that you're wasting the low speed of this Pokemon without this stab
Stealth rock Ferrothorn
Ferrothorn @ Leftovers
Trait: Ironbarbs
Ev's: 252 Hp, 252 Defense, 4 Attack
Nature: Brave (+Atk, -Spe)
Stealth rock- Important because it's an entry hazard and may discourage your opponent from switching in fire types
Power whip- Stab and hits hard
Gyro ball- Boosted by the nature, stab, etc.
Curse- Stat increase, lowers speed, subsequently helping gyro ball and power whip
Honest feedback please, let me know if these are bad or any way to improve these-
Thank you