Trader of Valuables

Trader of Valuables enters the battlefield with
haste if the total market value of nonland
permanents you control is $30 or more. (USD)
{7}, {t}: Choose a card you own on the battlefield
or in your collection and a card an opponent
owns on the battlefield or in their collection,
research their market values. If they have a
market value within $1 of each other, you and
that player trade those cards. Otherwise do
nothing. (They go in your collections)