As an additional cost to cast this spell, sacrifice a creature.
Flying, trample
Mana cost
2
B
B
Mana value
4
Printings
From
$0.32
EDHREC rank
#15174
Buy
Formats
Pioneer
Legal
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
13 Jul 2018
You must sacrifice exactly one creature to cast Demon of Catastrophes; you can’t cast it without sacrificing a creature, and you can’t sacrifice additional creatures.
13 Jul 2018
Players can respond only after Demon of Catastrophes has been cast and all its costs have been paid. No one can try to destroy the creature you sacrificed to prevent you from casting this spell.