Demonic Dread [Alara Reborn]

Set:	Alara Reborn
Type:	Sorcery
Rarity:	Common
Cost:	{1}{B}{R}

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
Target creature can't block this turn.