What I mean by the question: in order to get all six Teambuilder icons you have to play each role for five times. At the moment I have three of them and I'm about to collect them all.
But one thing is bothering me. If I, for example, need the Marksman icon but I don't want to play the marksman role I can just pick Gnar for top lane and select that my role is Marksman even though I am not playing one.
So basically it's possible to get the Marksman icon by selecting the Marksman role, while Gnar isn't a Marksman at all and shouldn't be played like that. Why is that so?