Vault 3

{4}, Sacrifice Vault 3: Roll a d20.
1 | Trapped! - You lose 3 life.
2-9 | Create five Treasure tokens.
10-19 | You gain 3 life and draw three cards.
20 | Search your library for a card. If it is an
artifact card, you may put it onto the battlefield. Otherwise, put that card into your hand.
Then shuffle.