Altar of Garath

{t}, Pay X life : you get X{e}
{4}{e}: Put 5 cards from top of your Library to your Graveyard. If one of this cards is a land, put it onto Battlefield under your control. You get 2 Life for each nonland card discarded this way.
{t},{x}: Cast target spell from your graveyard with converted Mana costs of X without paying its Mana cost.