­Spoils of the Vault, but probably costing you a little more life, and sorcery speed; on the flip side, it puts a massive chunk of your library into your graveyard, which is very powerful. So I think it probably balances out. Might see some play in eternal formats, but that's fine on a 1-mana rare sorcery.

Damn strong if you got Leyline of the Void out on turn zero... but that doesn't happen too often.

Won't help much with your Leyline. Now, after an opponent's Leyline...super Demonic Consultation powers activate.

­Forbidden Crypt would seem to work nicely (just don't cast it the first time!)

Though Yawgmoth's Agenda might work even better, if you can survive the "This is a Demonic tutor, that KILLS YOU when you cast it." effect.

Didn't like that effect when I first saw it, didn't like it when I tried it, don't like it now.

Heh. I was going to go back and advance Planar Void, but it turns out that that says "When"... so you'd not only take the damage, but couldn't use the cards afterward.

I definitely understand what you mean Vitenka, but I'm completely opposite on Demonic Consultation. I love playing spells that have the potential to kill me. I often go down in a blaze of glory. I have a bit of 'Disney Villain' in me.