Idea for a Thornmail change
Right now, buying Thornmail is like buying a giant "DO NOT AA" sign
In its current iteration, it's uninteractive, and only really useful on a select few tanks.
So how about you get rid of its current passive, and instead replace it with this
Unique Active :Hidden Thorns
Thornmail stores 10% of the damage taken in the last 4 seconds (before resistances). When activated, it's does an aoe bleed divided by the amount of champs the aoe hits.
The bleed effect occurs over 4 secs
E.G the aoe hits 2 people, so they each take 50% of the stored damage over the duration of 4 secs
Now, the numbers can always be changed, so please tell me any thoughts on if this is too op, or too weak, and what could be changed about this idea, and Thornmail in general.