Ferrothorn is one of the best defensive pokes in the game. It is so goddamn bulky, and walls so many pokes, especially since it racks up easy damage with iron barbs + rocky helmet and leech seed. In just the A-ranks, it easily rapes: Aegislash, Thundy w/out FB, Deo-S, Azumarill, Bisharp, Excadrill, M-Scizor, T-tar, Mega-gyara, Lati@s, Mamo, and Garchomp w/out fire blast. Ferro is nearly as good as it was last gen, and the only people didn't realize before was the new toy syndrome.
Aight, rocky helm ferro is imo a set taht really shouldn't ever be run. Especially on a pokemon that checks so many things, loss of passive recovery REALLY stings.
So, as for pokemon it is "easily raping" (i'm using spread of 252hp/216def+/40SDef, 40 sdef used to avoid 2hko from +3 manaphy ice beam and 3hko from greninja ice beam, so its more or less the optimal spread afaik)
Subtoxic aegislash easily wins against ferrothorn without knock off, and its more or less a liability for ferro to run knock off in teh first place. It's a nice move, don't get me wrong, but it has better things to be doing.
A lot of thundy carry FB, a lot carry taunt to make you easy to switch into as well.
Deo-s can simply taunt you too and do its job from there: set screens, hazards, or easily switch in something like Dnite or Bisharp idk. A lot of mons don't take super effective damage from steel and grass :I
more and more azu start to carry superpower nowadays, but I agree that ferrothorn is one of the most solid checks to azu there is.
Bisharp can just set SD on you as you gyro ball or leech seed or something else that isn't lethal. To be fair tho, you avoid 3hko and not many even carry SD now.
However, as for excadrill
252+ Atk Life Orb Mold Breaker Excadrill Earthquake vs. 252 HP / 216+ Def Ferrothorn: 146-173 (41.4 - 49.1%) -- guaranteed 3HKO
You cannot by any means suggest Ferrothorn is raping anything in this match up.
M-scizor literally just sets up on ferrothorn lmao what is ferro even doing back outside of leech seed. To be able to "rape" threats like m-scizor you need to be able to OHKO and take a bp or 2HKO and take 2 bp's. Ferrothorn does neither.
Ttar commonly carry fire blast as leads, and mega ddance ttar are actually starting ot carry fire punch just for ferro and scizor. However, thanks to resurgence in exca and the consequent resurgence in lando-t, i'd personally stick with ice punch and pack a heatran or something.
Mega Gyara can rest-talk :^) jk that set is sorta meh, ferrothorn is a solid answer. However, you need power whip to be able to totally counter it as without it, it can just set a sub and continue setting up.
Lati@s can carry hp fire, but for the most part ferro is a solid check i agree.
Ferro is a solid check to mamo, but its not really a great switch-in...
252+ Atk Life Orb Mamoswine Earthquake vs. 252 HP / 216+ Def Ferrothorn: 142-169 (40.3 - 48%) -- guaranteed 3HKO
And chomp without fire blast can also set SD on you and plow through you, so that effectively leaves ferro only able to take the scarf sets.
+2 252 Atk Garchomp Earthquake vs. 252 HP / 216+ Def Ferrothorn: 199-235 (56.5 - 66.7%) -- guaranteed 2HKO
4 Atk Ferrothorn Gyro Ball (109 BP) vs. 4 HP / 0 Def Garchomp: 118-139 (32.9 - 38.8%) -- 99.2% chance to 3HKO
Oh, and since we're talking about ferrothorn and supposed to be talking about breloom, here's a fun fact:
252 Atk Technician Breloom Mach Punch vs. 252 HP / 216+ Def Ferrothorn: 120-144 (34 - 40.9%) -- guaranteed 3HKO
4 Atk Ferrothorn Gyro Ball (86 BP) vs. 4 HP / 0 Def Breloom: 106-126 (40.4 - 48%) -- guaranteed 3HKO
So factoring in iron barbs damage, though your ferrothorn will be left at 20% with high rolls and 32% with low rolls,
ferrothorn is actually beating sash loom. Again, this is only sash loom, and this is not on the switch-in or anything, as even LO mach punch almost 2hko's i think.