King's Coronation

When King's Coronation enters, target opponent becomes the monarch. Then each player who is not the monarch exiles the top card of their library face down. Only the monarch may look at them.
{6}, Sacrifice King's Coronation : Each player who is not the monarch exiles the top card of their library face down. Only the monarch may look at them. The monarch may play these cards for as long as they remain exiled, and mana of any type can be spent to