IMO Armor doesn't do enough and MR does too much.

Most mages rely on burst while most ad can fall back on autos. Because of this armor is not as effective.

This is also why mages like vlad ryze cass azir, swain all seem to be bothered less by MR than someone like Lux.

Armor does more considering armor pen is weaker. The issue is resists counter burst more than they do DPS. A lot of mages, assassins, AD casters, and divers kinda blow their load and that's all they have. If you make their burst ineffective, you take away everything. DPS champs, on the other hand, just have their DPS slowed down. If you reduce their DPS by a third, they just need one extra hit after the third one to make up the difference then they can keep going. The reason why AP probably feels this more is that they have more burst with exceptions of DPS like Azir, Cass, Ryze, Teemo (ish), Kayle, etc while AD had more DPS like..... the entire Marksmen class

But yeah. ADs that rely on burst feel the armor way more. It's frustrating catching the enemy Ezreal out of position on Wukong just to jump on him and realize I barely tickle him because he has an IBG. Other burst ADs like Zed, Talon, J4 feel it too

Armor feels WAY too good against turrets. Even a little bit of armor makes you able to dive super easy

Armor is fine unless you're against an ADC.

Seems accurate.

It isn't that one does more then the other. It is the nature of ad vs ap because armor and mr are exactly the same. Ad champs tend to be dps and have good auto's. Ap champs tend to be bursty with bad auto's. So with armor it is just a matter of time until someone kills you with auto.s regardless of how much armor you have. With AP champs they tend to fall in two camps either the target is squishy/no mr and they die from burst or they have mr and they don't die and now you have to wait for cool downs to be effective again.

I don't even feel the need to build MR most of the time, and when I do, it's because I'm building a locket / banner of command. I could build full armor however, and I'll still get eviscerated by AD champions.

Don't think so; even 3 MR items can't protect you against ,, ,or with +25x . Also, Magic Resist items tend to have crappy stats for everything except magic resist. You're trading a lot of power for that magic resist. Whereas Armor and HP items have much stronger abilities and are just generally way more gold efficient.

I keep posting ideas for AP DPS itemization, which would help alleviate the AP/AD tank shredding disparity. The posts are often simply downvoted without any feedback, so I don't know if AP DPS itemization paths are an unpopular idea or if people just disagree with my ideas for how to do it. I'd really like to see DPS APCs as a viable alternative to marksmen, with available build paths that specifically push them into DPS and away from burst.

Here is one such post (it's a bit old, from before the AP item mini-revamp, so some suggestions might be a bit dated):

[{quoted}](name=Painted Celt,realm=NA,application-id=A7LBtoKc,discussion-id=tqLzRtbG,comment-id=003e,timestamp=2017-11-07T16:52:03.436+0000)

Do you know if there are any discussions at Riot about adding AP DPS itemization to allow Mages to fill an APC role, including tank-shredding, and taking objectives, without simply providing them so much multiplicative AP or additional AP scalings that they can instantly burst opponents with their ability scalings? I would really like to see a magic-damage alternative to having an ADC to make team compositions more interesting (ie., if you have an AD assassin mid, you would ideally play an APC bot) and to allow magic-damage dealers itemization to counter-build (at the sacrifice of burst damage) against tanky teams.

I am not requesting more AP-on-hit items, like , which simply add additional AP scalings and turn champions into pseudo-marksmen. I am also not requesting straight-off more DOT itemization, which would likely simply add follow-up damage after applying burst.

I am thinking of stuff (just brainstorming) more along the lines of: New Magic Stats:

Intensity (AP equivalent to crit-damage) = multiplies the owner's magic damage against a target, ramping up over time and decaying after a time limit since the opponent has taken magic damage from the owner.

Focus (AP equivalent to crit-chance) = sets the rate at which Intensity is applied; could also affect the rate at which Intensity decays; could also affect the maximum Intensity cap that can be applied to an opponent.

Item 1: An item which provides decent AP and a lot of Focus, along with a weak passive DOT burn on magic damage which applies extra Intensity.

Item 2: An item which provides Focus (+ maybe minor tanky stats) and with an active that applies a single-target tether which shreds %HP as magic damage or %MR.
[Great item for close-ranged magic-damage Juggernauts/Battle-Mages, like ; a bit similar to for AP.]

Item 3: An item which provides decent AP, Focus, and binds a conduit to an ally. Your bound allies damage increases your Intensity against the target.
[This is an item which clearly works best with an APC + Supp in a duo-lane.]

Item 4: An item which provides AP, Focus, and with Mana and/or Health sustain. This could even be if Focus were added to it. The health on could be reduced and the sustain could be increased. This would be an item for surviving laning while giving up early snowball potential in exchange for delayed lategame scaling.
[In general, APCs would probably end up tankier than ADCs with this kind of itemization being available, but they would have weaker sustain than Marksmen's Lifesteal so it's a trade-off. If you guys wanted to add something like spell-vamp itemization back into the game, then APCs wouldn't necessarily need to be tankier than ADCs to compete, but maybe that's another idea for another time.]

Item 5: An on-hit item which applies Intensity; this would be best as an update to . Even though I said that I am not requesting more AP on-hit items, I think that it would be fine to semi-merge the existing ones (just specifically) into this Intensity/Focus system.

Item 6: An item which gives AP and CDR, and when activated reduces all initial magic damage dealt by abilities by 50% but causes opponents to burn for 100% of the original magic damage over time. This is a niche item for really specializing into the delayed damage role. While it doesn't provide focus itself, it stretches out the user's magic damage so that it can be applied after Intensity has ramped up to amplify the damage dealt. While I am sure that this item's active when combined with a combo or a ult resulting in a pentakill would be frustrating to some players, it is really not very different from an ADC taking a pentakill lategame with a crit build including . Also, by reducing the initial burst by 50%, it allows enemies more time in a fight to do their own damage, or to regen/sustain back their health, to activate or , etc.