Originally Posted by YuriKitten
It's not supposed to be equal to. However, whenever you bought FoN, it was either for the MR or for the health regen passive, with the other stat being just a nice little bonus. The health regen passive in particular was not that useful unless you were also building Warmog's. Now, you can get that lovely health regen passive along with a massive amount of HP without having to pay extra/fill up two inventory slots, and you can do so even if you're against an essentially all-physical team.
-Most- players in season 2 were buying Abyssal on tanks that had any AP scaling instead of FoN because Abyssal is quite a bit cheaper and increases their damage output through both +AP and the mr shred aura (which also helps increase the damage of your APCs, many of which are too long range to really benefit from having their own Abyssal), and tanks often need that extra damage to help make themselves something that can't simply be ignored, especially tanks like Cho'gath who also have pretty decent AP scaling, and most of the true tanks do magic damage for what damage they actually deal (such as Leona, and Abyssal would help her passive do even more damage due to the aura).
Honestly, I loved FoN also, but I got to where I was pretty much never buying it except on Mundo because it was just too expensive, and Mundo was the only champ it truly synergized well with, where you were always wanting all the stats on it and making good use of all of them.
On most any other tank, you were wasting a lot of the item's stats. More often than not, you'd just buy the Negatron cloak and wait forever before upgrading it, which means you only really needed a Neg Cloak's worth of MR, making pretty much anything else that builds out of Neg Cloak and is significantly cheaper than FoN a better option.
Actually the number one reason why I bought it was movement speed. I loved being able to keep up in team fights. Movement speed was so hard to come by on tanks and there's nothing more frustrating than being completely unable to stay with your team, escape enemies, or chase down survivors (you're a tank so you're a likely survivor in all honesty).
Fine if they want to nerf regen then they could have nerfed the stats. That's fair if that's their design goal. I'm so tired of seeing people say that warmog's now replaces force of nature. It doesn't. Putting a gimped version of Force of Nature's regen on warmog's defeats the purpose. Warmog's had it's OWN regeneration when it combination with force of nature created MASSIVE regeneration. You're just throwing out one source of regeneration and adding another with the new combo. It wasn't moved onto another item, it REPLACED another piece of the formula. Yes it's a bit stronger on warmog's now than it was on force of nature just alone, but it doesn't mean "all that lovely" health regen is still available.
The one thing I'll give you is that I never rushed force of nature. I simply had other things to get to, and as a top laner MR was rarely in high demand for me. Once the roaming started though it became VITAL for keeping up with the pace of both teams, keeping my health up, and making sure I could take hits from the AP carry that I was now dealing with. In cases where I DID need MR it was one of the first things I'd rush. If I had to deal with a Shen or a Malphite top you better believe I'd pump out a FoN as soon as possible.
Abyssal Scepter is nice, but I build it on such few champions honestly. I don't think it was as wide spread as you make it out to be. I honestly only built it on Cho, Vlad, and Amumu. Unless the champion has exceptionally high scaling and can benefit from defenses, then I'd in general ignore it. I could probably have built it on malphite, but I prefer pure tank malphite myself, AP malphite was never my style. In the end it has an entirely different function from Force of Nature, and there is nothing in the game that really truly replaces force of nature.
Warmog's heals you slightly faster than it used to, yes that's nice.
Spirit visage also helps heal, and has a bit more MR now yes that's nice.
runic bulwark has slightly less mr, and is a great item for sure.
but what do I build on a tank for movement speed? Twin Shadows? It's a ****ty abyssal scepter with two situational slows and **** stats. My tanks are now forced to look into these options, or heavily consider suboptimal items like trinity force or phantom dancer.