So I want to start this with saying I love the Corrupt effect. It's just all around good in my opinion. However experiencing it both as plot and having it happen to my character, I want to give a bit of a warning to plot teams for using it. If you use it, only use it in scenarios where you want a Killing Blow Active & Ensure Resurrection Active type of fight over the whole field. Once you hit a PC with it, you lose the level of control over those activities that you had when it was only on your card, or only on NPC guild cards. Once one of those stick it can quickly spiral out of control if for some reason you can't give commands to your new thrall. As a plot member if I unexpectedly had one stick on the best stick jock on the field and then got dropped, it's now entirely up to that player how they'll act as a greater undead, a big level of uncertainty. As a player who had one stick on him, I got told to "Kill the living." I did. I put one person through the circle and nearly got a second one. It's the same to a lesser extent with Charm, but there are a lot more defenses/cures against that. Again, I love the effect, but like other abilities, it's important to know how to apply it well.