Awww yeah, sexy blindfold is back. I like the sound of Shadowform.

But yeah, as far as increasing the duration on Living Dead goes, 60 seconds would be far too excessive. You'd basically be asking for a recast increase to its cooldown by doing this, making it less effective for fights that really matter. That and having to time it so you could get a couple in for maximum use, you'd have to remind your heals more than now to not heal you when the duration is ticking down and the damage hasn't quite come yet lol.

Basically you just need to accept the fact that if you use Living Dead, and Walking Dead never triggers, that you've done all you can, and if you die after that it's not on you. I mean, unless like you stand in stuff, or your healer is new/sheepish and you did a heckin' chonk of a pull anyway.