This deck si not Tier 0 lol. CA pre-nerf was Tier 0. Sylvans can easily be countered by CA, SSA with Abyss Soldier and Shark Cruiser, and good back row cards (no trap cards, because of Rose Lover). As a SSA player, I have a 60-70% winrate against Sylvan. And I'm KOG and DLV20.
What's there to say? U are using another op meta to counter sylvan, which everyone know. Its a counter if u come out with some unique counter not some known meta everyone know. Lol.