Toymaker

{1}, {t}: Create a 1/1 colorless Construct artifact
creature token named Toy.
{2}, {t}: Add {c} to your mana pool for each Toy
you control. Spend this mana only to cast artifact
spells.
{3}, {t}, Sacrifice a Toy: Draw a card.
{4}: Untap Toymaker.
Putting the "toy" in "toil."