Moxivinha, Library of Truths

At the beginning of your upkeep, draw a card. If
you do, discard a card. Then if you have five or
more artifact cards in your graveyard, draw a card.
{1}{w/u}{w/u}: Draw a card, then discard a card.
If you have ten or more artifact cards in your graveyard, you win the game.
Truth is costly. Lies cost more.