Cursed Hedron

{1}{u}{t}, Pay 1 life: Draw a card.
{2}{r}{t}, Pay 2 life: Cursed Hedron deals 3
damage to any target.
{3}{g}{t}, Pay 3 life: Search your library for a land,
put it into the battlefield tapped, then shuffle
your library.
{2}{w}{b}{t}, Pay 4 life: Exile target nonland
permanent.