Armor items vs Magic Resist items
I find it interesting that armor items and magic resist items tend to follow a specific trend. The trend being that the other components of these items tend to be oriented, with armor items usually more offensive/neutral focused, while MR items are almost always defensive focused. There are very little offensive focused MR items even though there are a good amount of defensive focused armor items. When I say MR or Armor items, I mean items that are mostly MR or mostly Armor giving, and have a passive/active (so items like Aegis and Gargoyle Stoneplate are not considered, but the items built from Aegis are split based on which stat is given more).
> #The Items
For clarity, I would like to sort out all of the Armor and MR items into their respected categories.
Armor Offensive

Armor Defensive

Armor Neutral

MR Offensive

MR Defensive
(you buy it mainly for the shield, not the passive stats which also support more of a defensive approach)
MR Neutral

It is interesting to see how wide the range of options is for armor items when compared to MR items. Armor items are slightly favoring offensive play styles, but are more balanced than anything across all 3 categories. While on the other hand, MR items are almost exclusively Defense focused. Even the offensive MR items are not easily fit into any champion's build.
Witt's End can only be used by AA based champions who can use its 2 on-hit passives and attack speed. Abyssal Mask is more versatile, but still hard to build on non-magic damage based champions. However, Ninja Tabi (a defensive armor item) is easily fit into any champion's build because it is always useful. Every champion who deals primarily physical damage, uses a good amount of basic attacks to do so (even AD assassins usually have some kind of AA requirement to use one or more of their abilities). The other reason is that it is boots, which do not factor into the core build.
I think an item which gives MR and also has an offensive component which allow it to fit into almost any champion's build, or at least a good amount of both physical and magical damage based champions, would be a good thing. Maybe something similar to Zeke's Convergence, where by itself, it is only so-so in terms of stats, but when used correctly with other teammates, it can provide a really good offensive focused boost.
