Can thornmail get an aura pls?

Sounds reasonable. A circle like abyssal staff with thorns around it?

I do think all these auras could get confusing.

Imagine someone has flame cloak, red buff, aegis, thornmails, and captain boots. You would have to check their inventory to get a clear sense of what items they have anyway.

Also, Thornmails isn't an aura anyway, because it's directly affecting specifically auto attack damage targeted to that champion. It has nothing to do with a range.

Don't you get a little animation thwacking you on the forehead whenever you attack someone Thornmail?

Do you not look at the enemies items every time you die and/or back (unless you are being sieged in base, you have plenty of time to look at items on your way back to wherever). It's good practice to look at it whenever you get a lull in what your doing, or at least I've found it to be.