Yogg Saron's Willing

Yogg Saron's Willing is blue, black, and red.
Yogg Saron's Willing can't be countered.
Search your library for an instant or sorcery spell for each instant or sorcery spell in your graveyard. Then, for each instant or sorcery spell searched for this way, choose a player at random. Then, each player casts each spell for which he or she was chosen without paying their mana costs. Any targets of any spell cast this way are chosen at random.