The Lone Scavenger

Begin the game with this card revealed.
{2}: Exile a card from a graveyard; create a colorless
Treasure artifact token with "Tap, Sacrifice this
artifact: Add one mana of any color."
If a creature is exiled this way, you gain 2 life.
Sacrifice a Treasure token: Draw a card, then
discard a card.
Win: Have no library and no graveyard.