Like the title says, I find Syndragosa this patch to be pretty decent! Her Hero Power now buffed this patch helps you just coast through the early game while you just consistently level up. The strategy is to freeze Bob's tavern every turn until you reach tavern 5-6. Then you can decide what comp to go for based on the minions you find on these high tiers. Plus, this style of reaching said high tiers as consistently and fast as possible (other heroes such as Omu and Maiev probably faster still) fits the current meta of Battlegrounds.
Just give her a try if you aren't offered any op heroes along with her, as she can definitely surprise you with her consistency.
Sindy's always been decent, tbh. Underrated, somehow, but enough of a boost early to get up to top 5 relatively reliably. The one that puzzles me most is Nefarian - consistently rated low, but feels like he should be pretty good when Cyclone is pretty meta defining. No boost for the first 5-6ish turns, I guess, but certainly solid enough for me to rank it T3. As someone without the pass, picking T3/T4 heroes is not too uncommon!
At least the meta slowed down notably with the Lil' Rag nerf.
I had a pretty good run with her freezing all on 1 and not even purchasing a minion, kinda similar to a maiev strategy - first place. It might not be the best idea, but the fact that its viable at all shows how much she has been buffed. She's a real threat to other consistant heroes now I think.