Gigantic Earthworm

If you play this from your hand, destroy it at the beginning of the next step.
When this card Dug Up, shuffle any amount of
cards targeted by dig this turn into your library.
As long as this is in your compost pile, if you
draw a land, you may reveal it. If you do,
discard it and draw a card.
Dug Up: {p/b}{p/g}{p/b}