Looking at a few Warlock decks that performed well last season, this is the best Warlock Deck October 16 Season 31 to climb the ladder with.
It’s the list Sjow hit rank one with a couple of weeks ago, and with no new cards since then it’s still a very relevant deck.
You can also play Zoolock, but it’s just not as strong vs Shaman, and there is a lot of Shaman on ladder. That may change depending on when the nerf’s come, but for now this is a strong list.