Unwanted Market

discard a card: exile the bottom card of target opponents library face dawn. you may use mana
to cast cards exiled this way as if they were any
color as long as you control Unwanted Market.
you may look at cards exiled by Unwanted Market.
{1}{t} pay 1 life: target opponent gains control of Unwanted Market. draw cards equal
to the number of cards exiled by Unwanted Market.