Floodgate of the Abyss

Whenever a player casts a spell originally printed
in the Tournament of Champions expansion other
than Floodgate of the Abyss, exile it.
{1}{b}{b}, {t}, Exile Floodgate of the Abyss: Exile
all nontoken permanents with a name originally printed in the Tournament of Champions
expansion.
A foolish choice, to keep an entire magic locked away.