IDK if this would be a good idea but is an idea

why not introduce a tank item that is generally cost inefficient but reduces the amount of damage you take from true damage? I know that kind of defeats the purpose of true damage but basically being unable to itemize against it(i guess health technically counts but not against some champs) seems kind of ridiculous as well.

Basically like a less efficient randuins but instead of crit have it be true damage.