Wisdom of the Ancients

Wisdom of the Ancients costs {1} less to cast for each instant and sorcery card in your graveyard.
Choose up to two target instant and/or sorcery cards in your graveyard. Until end of turn, you
may cast those cards without paying their mana costs. If they would be put into your graveyard this turn, exile them instead.
Exile Wisdom of the Ancients.