Argen, Apex of Chaos

When Argen enters the battlefield, give all cards
in your hand to your opponent.
{u}{u}{u}{u}{u}: Swap the text of any two
permanents of the same type.
{r}{r}{r}{r}{r}: Swap control of a permanent you
control and a permanent an opponent controls.
You may play the top card of your library.
You may play any number of lands.