DJ Pon-3

At the beginning of your upkeep, pay {1}, if you do, put a Beat counter on DJ Pon-3
{1}{u} Remove X Beat counters: Counter target spell unless it's controller pays {x}.
{1}{w}{t} Remove X Beat counters : X target creatures gain hexproof until end of turn.
{1}{r}{t} Remove X Beat counters: Exile X amount of cards from the top of your library, until end of turn you can play them paying their mana cost minus {1}.