Demon of Death's Gate

Creature — Demon

You may pay 6 life and sacrifice three black creatures rather than pay this spell's mana cost.
Flying, trample

9/9

2010-08-15:
Casting Demon of Death’s Gate by paying its alternative cost doesn’t change when you can cast it. You can cast it only at the normal time you could cast a creature spell.
2010-08-15:
Casting Demon of Death’s Gate by paying its alternative cost doesn’t change its mana cost or converted mana cost.
2010-08-15:
Effects that increase or reduce the cost to cast Demon of Death’s Gate will apply to it even if you choose to pay its alternative cost.