Legendary Creature - Human Wizard 3/4, 2UUU (5) Flash (You may play this spell any time you could play an instant.) Creature cards you own that aren't in play have flash. Each opponent can play spells only any time he or she could play a sorcery.1 To save this plane, he must forsake all others.
Illus. D. Alexander Gregory & Jeremy Jarvis
This card prevents an ability that would let an opponent play a spell as part of an effect because sorceries would not be legal then. [Time Spiral FAQ 2006/08/30]
This card prevents opponents from playing suspended cards, no matter what phase it is when the last time counter is removed. [Time Spiral FAQ 2006/08/30]
This card prevents opponents from playing Madness ability spells, no matter what phase it is when the card is discarded. [Time Spiral FAQ 2006/08/30]
Since this spell limits what can be played, it overrides any other effect that tries to loosen the restriction. See Rule 103.2. That is what the above rulings are saying about specific situations, but it applies to all situations where some card says you "can" do something and this card says you "can't". [D'Angelo 2007/02/28]
Time Spiral
(Rare)