I am trying to theory craft who this item might be good on and what role to take them to to use it. i am thinking a dive support right now, maybe like a 
since he likes MS, and the tankyness wouldn't be wasted.
or maybe on a jungler who would like to set up a tower dive like 
The trouble is, if you provide a full 6-slot build with Ohmwrecker, there will always be an item that's a better replacement.
This is because Turrets have been buffed and are now a significant force. Plating is meant to slow town turret takedowns. Reinforced Armor makes backdooring a turret nearly impossible.
So Ohmwrecker with its massive 120s cooldown is really only useful in two scenarios: 1) when pushing with a minion wave, to disable ~3 hits to minions. Not great for the cost. 2) Tower diving enemy champions to get a kill. More useful than #1, but still a very niche scenario. Generally you just have your tank get the turret aggro and it's not that big of a deal if they take a few hits while your DPS secures the kill.
Ohmwrecker would be great if backdooring was viable. I think Reinforced Armor is kind of stupid and should be removed from the game to allow greater split push/backdoor strats. But if League is anything it's consistent in its linear playstyle. 2 bot, 1 mid, 1 top, 1 jungle, any deviations are generally a disadvantage. Split pushing builds like Phoenix Udyr have been nerfed and towers buffed.
You pretty much have to be a diver to use Ohmwrecker to any efficiency at all. But many champions can dive ... Amumu Jungle, Camille Top, Alistar Support ... how do we narrow it down?
So the item gives tank stats, which is fitting for someone who might be under an enemy tower tanking a couple shots before disabling the tower.
Some Observations:
The item costs notably more than most other utility items
= 1500 Gold
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= 1800 Gold
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= 2100 Gold
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= 2250 Gold
= 2300 Gold
It seems to have more in common with items that are aimed more towards their tankiness (although these items do still provide some utility so they are occasionally purchased as utility items)
= 2650 Gold
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= 2700 Gold
= 3000 Gold
######This is not an exhaustive list of utility items but you should get the idea; please don't kill me.
#Supports For someone such as a Support to consider purchasing Ohmwrecker, they're looking at a pretty hefty investment, at least by their standards.
|Pros |Cons| |- |1.) Supports are some of the best champions to stack utility onto as they don't typically value damage items or extreme durability| 1.) Supports already function on tight budgets and typically don't have means to justify purchasing items that cost more than 2300 Gold (unless fed or the situation calls for it) | |2.) The combine cost for Ohmwrecker is fairly forgiving, as you only need 950 Gold to purchase it after obtaining all of its components. (Abyssal Mask, for example, requires 1180 flat gold after its components are purchased) | 2.) Ohmwrecker, for its price, gives fairly mediocre stats to offset its active ability (disabling towers) which is already infrequently used. The return on investment is rather poor for most situations (there are plenty of situations where Righteous Glory. Frozen Heart, or Abyssal Mask would be useful, but their cost restricts opportunities for supports to purchase the items more often.) |
The biggest issue for Ohmwrecker likely is that it isn't quite as useful in unorganized play (hard to coordinate a tower dive to begin with, let alone pull it off correctly), and in organized play a tank + stopwatches or Vladimir pools or other untargetabilities can mimic what Ohmwrecker is meant to accomplish -- making a tower dive easier to pull off.
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)That being said, there are still some champions who could consider getting the item:
- Doesn't need much gold to function (WQ Combo) and his R is all the beefiness he needs. Ohmwrecker could reset the tower shot damage or allow for even longer dives after his R runs out.
- While not a diver, his R + Ohmwrecker can provide ridiculously long periods of time where towers can't fire.
As far as particularly special use situations go, that's about it. Most other supports would basically use it to disable the tower as soon as they dive in
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######Now let's move on to the next group who could reasonably make use of Ohmwrecker. #The Other Laners and Junglers
, etc.)Top Laners and Junglers would be the only other groups to reasonably expect to see value utility, but even then there's the issue of having better items already available. Why pour so many resources into one item that negates tower damage for a short while when you could just purchase an item to be more tanky ALWAYS and just use that extra health to tank the tower for your team when the time comes around to try a tower dive?
Just a snippet of my personal thoughts.
Personally I think the item should be reworked into something a little more viable. Although Riot is obligated to keep the name Ohmwrecker and the active of disabling turrets.
I actually suggested a rework to the item in a post on the Concepts and Creations board. Here's the link if you're interested: https://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/hB87ETqm-hextech-items
