Need an enchantment which can kill!

[zeus-online]

Hey, i'm making a casual deck where the plan is to get humility, living plane and night of soul's betrayal into play....but i need an enchantment to kill..and it cannot be one which requires mana....Speed shouldn't be a factor, but faster is still better.

/Zeus

[Eastman]

Is mana cost an issue?  Form of the Dragon is prohibitively costly but pretty useful if you can get it into play. I used to use it as an alternate win in Rector decks

[Godder]

Honden of Infinite Rage, Seismic Assault, Bulwark and Collapsing Borders come to mind.

[Nefarias]

Subversion is slow as hell but fits your colors.

They've made some cards very similar to it as well more recently, but I don't recall any of them specifically.

[Godder]

Going to on-colour stuff:

Festering Evil, Lim-Dul's Hex, Underworld Dreams, Megrim, Wound Reflection, Dark Reflections, Gibbering Descent, Liability, Murderous Betrayal, Necra Sanctuary.

Also, artifacts would work, and we have a few there to choose from as well:

Armageddon Clock, Barbed Wire, Black Vise, Booby Trap, Darksteel Reactor, Dingus Egg, Dingus Staff, Ebony Owl Netsuke, Iron Maiden, Jinxed Choker, Misers' Cage (especially good because it only hits opponents), Paupers' Cage, Skullcage, The Rack, Thumbscrews, Wheel of Torture.

[zeus-online]

I think form of the dragon fits nicely. Thanks guys!

/Zeus