Chambers of the High Council

{t}: Add {c} to your mana pool.
{t}: Add one mana to your mana pool of any color of a legendary creature you control.
Exile 7 cards from your graveyard, {t}: Until end of turn, you may cast target card in your graveyard. If that card would be put into your graveyard this turn, exile it instead.
The source of all Shaddath's woes.