I love how if theres a tryndamere or yi or yasuo or fiora or many of the ad champs that are op ripping your team apart, boom build thornmail and gg. Now on the other hand, you got Diana, Katarina, and akali running a muck on the rift and even with a full magic resist build they one shot you. Please make a thornmail that works against AP, I'm sick of people not banning akali and then they enemy team first picks akali and the games over in champ select.
There would be two major problems with a thornmail for AP.
Firstly that much MR in a single item would be devastating for burst mages. Yi and Yasuo can do constant damage, even if it is reduced by the thornmail. Burst mages do a burst and they are done. An item that effectively eliminates their burst makes them irrelevant.
Secondly, thornmail deals damage to the attacker. Yi builds lifesteal to counter the effects. The vast majority of mages do not have sustain to counter that damage because spellvamp is largely ineffective. And they don't have much health. Reducing their damage to a pittance and then making them damage themselves effectively eliminates mages as a viable class.
A better solution to the magic resist problem I feel is to rework the Orb of Winter and bring it to the rift. Transform it to a non-tank item (reduce the excessive 70 MR while buffing it in other areas) and make it a viable defense option for any role or class.
I am literally laughing at your post.
I think it's a fair idea. Would be good against persistent damage mages
Maybe not Thornmail for AP in a literal sense, but think of it this way.
You have burst casters, and consistent damage casters, It would be difficult to design just one MR item with the ability to work against both.
If Odyn's Veil could be a thing in Summoner's Rift, it would at least be a step in the right direction.
Here you go. If you think there is no way to build against AP champs, you might want to invest in any of these magic resist items.
I have a .txt on my desktop marked "Quotes." In this document, I save forum quotes that I think are necessary to re-use. The one that I have used the most is my list of 5 questions for anyone who suggests "Magic Thornmail"
- First and foremost, coding issues. Item damage tends to be coded the same as spell damage when it isn't attached to basic attacks. Long story short, what this means is that there's a very high chance that the code could bug out, and two Magic Thornmails could reflect each others' damages. So, if you had two mages pick up Magic Thornmail, and one casts one spell, the damage reflection would go back and forth a number of times depending on how high the damage return was. If they threw their whole rotation, it could crash the game with the feedback loop. They would have to specifically focus on making sure the code could never hold a feedback loop like this. Plus, thanks to spell damage and magic damage not having the same meaning. AD champions would be taking spell reflection damage as well.
- AD is not similar to AP, ergo Armor is not similar to MR. With AD, your damage tends to scale over time, whereas AP damage tends to come in bursts that take about a full second to rotate. While an AP champion is capable of 2000-3000 damage in a single second, an AD champion can match that damage during the AP champ's rotation cooldown (usually about 5-8 seconds downtime). Thus, when you buy Armor, you're trying to extend your lifespan by a number of seconds. When you buy MR, you're trying to survive the rotation so you can retaliate.
- AD has a lot more control over their damage output than AP. AD champions don't have auto attacks that apply in a large area of effect. AD champions don't have uncontrollable bounce attacks that apply on-hit effects. AD champions don't have skill shot type basic attacks that can be body-blocked by someone else.
- AP champions don't have a sustain mechanic quite like AD champions. With AD, you have Lifesteal, which is consistently sustaining you through combat. Now, your first reaction might be to point out Spell Vamp, but the problem with Spell Vamp is that it's a lot less plentiful and much less useful to most mages. Lifesteal is commonplace, Spell Vamp is not (and everyone hated it when it was).
- What is your solution when someone picks up Thornmail and "Magic Thornmail"?
lol @ the akali and Katarina mains telling me I'm bad
I just wish was in SR with some edits
An AP Thornmail would kill some champions like 
and 
too
thornmail is already op vs auto attackers, I see no reason to make another version
