I want a way to get true vision when I'm 6 items via trinkets.

And I don't mind having a high cooldown pink trinket as only option. The thing with is it's completely garbage as champions that use in-fight stealth are a lot about burst/ temporisation of cooldowns while in stealth. Knowing their position without being able to target them is close to useless, especially lategame where damage has skyrocketted and the smallest advantage in who strikes first is decisive. And I don't see why there would be such a weird disparity of power with 'before I'm 6 items' -> oh well, pinks are cheap, I can get those to 'after I'm 6 items' -> what do I do now?