Choose Goose, Merchant of Ooo

{t}: Target player gains control of target artifact, creature, or land you control. Create a Treasure
token.
{r/g}{w/u}, {t}, Discard a card or Sacrifice a Treasure:
Draw a card.
{r}{g}{w}{u}, {t}: Gain control of target permanent.
Target opponent gains control of target
permanent you control.