Heralds Of Ruin

Search your library for a Titan or a
Legendary creature and exile it. Shuffle your library. As long as that card remains in exile,
you may cast that card from exile by paying
5 life, in addition to its mana cost. If you
cast that card from exile this way, any player
may pay 5 life. If any player does, counter
the spell and it remains in exile for the remainder of the game.