Were you ever able to get it?
I got bronze 1 in team league, but i swear.
I did it only this season and nevermore. The people i played with in TL, was the same at some point in HL.
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My experience in TL has been varied (Bronze 5 btw, so at rock bottom level.) This season it's been 6-6 (pre season it was 11-20). The last 3 TL games I played, we won - with some crazy comebacks even. In the last couple of games, since I was placed, I got to ban, even though a couple of guys had higher MMR. Also, the matches w/o voicecoms went better for me. I think its just better to play TL with people who don't tilt and keep a positive/cooperative mindset. A couple of the guys in the last few matches are on my friend list, but I just have not been able to play more to follow up on that. It also helped that I was filling in for support (a comfort role) so the more skilled players could take assassins or tanks.
I am worried that next season, getting the ranked mount will be harder.
I only play TL with real life friends. It makes it that much easier to explain things, and they know I know my stuff so they actually listen.