I'm interested to see if the toad functions as an actual pet as well.. like enemies attack it and it can take advantage of thorns equipment (via passive)
They may target at random but they could still be usefull. Lets say a champion appears with a bunch of other monsters around them. Ideally you would want to CC the champion, but if you can CC some of the mobs around it than it is still useful.
I've tried to Hex SK on beta. No success =/ CCing bosses would be a niche for Hex.