Milek, Master Merchant

At the beginning of your upkeep, you may reveal
the top card of your library. If it has less total converted mana cost then than the number of permanents you own but don't control, put it
into your hand.
Whenever a nonland permanent enters the battlefield under an opponent's control, you may
pay {1}{r}. If you do, exchange control of it and
target permanent you control with equal to or
minus one total converted mana cost.