I said this in the other thread too but I'll say it here too for everyone to see:
Woops. I know the problem, but it's too late now. Everyone QQ's about the crashes and OP monsters that I wanted to get a fix out as quick as possible. People are going to have to live with broken hydras for a bit since it is completely unfair to Duff for him to constantly update his servers.
Every HU patch has its issues and in the future this will be fixed for sure. To Nova and anyone else who has or wants to make a Hydra sorc I'm sorry.