Beginning of a New Era

When you cast this spell from your hand, each opponent may pay {3}. Whenever an opponent
does, you may untap a basic land you control.
When this enchantment enter the battlefield,
each opponent who paid {3} gains 5 life and
shuffles their graveyard into their library. Then,
exile all graveyards. Return all lands from exiles
to the battlefield tapped under your control.
You may play cards from exiles.