Self-Assembling Machine

{t}: Add {c}{c} to your mana pool.
{1}, {t}, Sacrifice Self-Assembling Machine: Draw
a card.
Convert {2} (You may cast this card face down as a colorless artifact with "{t}: Add {c} to your mana pool." for {3}. Turn it face up any time for its convert cost.)
When Self-Assembling Machine is turned face
up, draw a card.