Treasure Chest

{4}{t} Sacrifice this artifact then roll a D20.
[1-3] You lose 3 life or discard a card.
[4-10] Create 5 Treasure tokens.
[11-16] Same as above, except you
also gain 3 life & draw 2 cards.
[17-20] Same as above, also you may search
your library for a card, reveal it and add it to
the top of your library. If 20 add it to hand.
Add +3 to roll if you completed a Dungeon.