Lhurgoyf's Cradle

{t}: Add {c}
{1}{g},{t}: Add {g} for each card types among
card in all graveyards plus 1.
{2}{g}{g},{t}: Add {g} or {b} for each creature
card in all graveyards plus 1.
Sacrifice Lhurgoyf's Cradle: Until your next
turn, cards in graveyards can't be exiled and can't
leave the graveyard. Activate only if you control a Lhurgoyf creature.