Black Hole Dawn

Enchant target player. At the beginning of enchanted players upkeep that players discards their hand or exiles a land they control. If that player does not exile a land they control, tap all lands that player controls and lands that player controls do not untap until that players next turn.

{p/b}{p/c}{p/g}{p/r}{p/u}{p/w} Exile this enchantment: This ability can only be activated by enchanted player.