Channel 5 Broadcast Station

Channel 5 Broadcast Station enters the
battlefield tapped.
At the beginning of your end step, you may pay {4} and tap {t} Channel 5 Broadcast Station. If
you do, choose a card at random from target
player's hand. That player discards that card.
{t}: Add {c}{c}{c} to your mana pool. It cannot be
used for abilities on this card.