Bloodbraid Marauder

Bloodbraid Marauder can't block.

Delirium - This spell has cascade as long as there are four/more card types among cards in your graveyard. (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.)