Stuck on Plat 2
So i did some bg's grinding and went from gold to plat 3, it was fine, as soon as i reach plat 2, the paired me against paragons and tb's while im a cav with 8k prestige and a pretty under-developed roster. Most players i was facing had almost all their champs above 10k+. Lost currently 6 matches, why is this happening? Is this tier considered "free for all"?