Very chaotic endgame. Rather peaceful T1-T3.
Scorpion is on the weak side of the tech choices but the recent buff on its ability [ Kills refresh the idle bonus damage to its maximum effect (5 hits at 150%)] makes it decent in T2 for clearing out banshees.
Not too sure about the transition. I went Warden, Gravedigger & Lich this game but I think the better option would be to go Crystal and then Orbkeepers.