I second that Aven Mindsensor is hot in this MU (as well as against other survival strategies). I switched my MD Kitchen Finks for mindsensors and feel they have a wider impact on a lot of games compared to the lifegain and defense provided by finks.
I also use two ghostly prison in my ET-driven SB, they come in against dredge, goblins and the madness vengevines. With these changes I've elevated my stats against madness to somewhere around 50/50, but it's still an extremely intense fight.

