Witness to Eternity

Flash

Enchant Creature

When Witness to Eternity enters the Battlefield, enchanted creatures exiles all cards from all graveyards and all cards in exile.

Enchanted creature has “Pay 1 life:You may play a card exiled with this creature until end of turn, and you may spend many as though it was mana of any color to cast spells this way. Activate this ability only once each turn”