Murderous Betrayal [Eighth Edition]

Murderous Betrayal [Eighth Edition]Set: Eighth Edition Type: Enchantment Rarity: Rare Cost: {B}{B}{B} {B}{B}, Pay half your life, rounded up: Destroy target nonblack creature. It can't be regenerated. Which hurts more: a sword in the gut or a dagger in the back?

Set: Khans of Tarkir Type: Enchantment Rarity: Uncommon Cost: {G}{U} Face-down creatures you control get +0/+1

you may pay 3 life

it's a Spirit in addition to its other types

{3}{U}{U}: Counter target enchantment spell

Set: Hour of Devastation Type: Enchantment — Aura Curse Rarity: Uncommon Cost: {3}{B} Enchant player

it enters the battlefield tapped

" —Hermit of Hanne Hall

Mana-Charged Dragon gets +X/+0 until end of turn

Sulfuric Vortex deals 2 damage to that player

Set: Eternal Masters Type: Creature — Insect Rarity: Rare Cost: {G} Flying

" —The Underworld Cookbook

you may exile target card from a graveyard