The Dread King

{r}: Exile the top card of your library.
{w}: Exile a permanent you control.
{b}: Exile a card from your graveyard.
At the beginning of your upkeep, choose two
cards exiled by The Dread King. You may play
those cards until your next turn.
Spells you cast from exile cost {r}{w}{b} less to cast.
This effect reduces only the amount of
colored mana you pay.