Deathroot

{b}{b}: Search your library for an Ash of War, reveal it, put it into your hand, then shuffle your library.

{b}{b}{b}: Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle your library.

{b}{b}{b}{b}, exile Deathroot: Search your library
for a card, put it into your hand, then shuffle your library.