Albedo

At the beginig of your turn, {t}{x}. place an {x}-cost alien card from your graveyard and place it on this card.
the creature gains +3/+2 to itws attack. dies or destroyed remove the alien card. At the begining of
each of your thens this card is reveled, {t}{x}. search
your graveyard for an {x} cost alien card. place the
alien card on this card. Shuffle your library.
Cant be destroyed as long as it is covered.