This spell may be cast at any time. This spell prevents a card from being played (return it to the players hand). The card is considered to have been 'not played', and cannot be played again until that players next turn. (off)
Copyrights:
TSR
Wizards of the Coast
This counter card is a great one, adding to the power of wizard spells. Being able to put off the card an opponent gives you time to find counters to it, destroy it in the hand, or even prolong the game (by preventing the sixth realm from being played).
To me, this can be the best use, but it basically lets you counter ANY card. This is a great power. Even if it only stalls the target from playing the card until later in the game, it can stop any game killing combo (like A Sure Thing (74/NS) / The Fates (23/BR-chase)) and give you a chance to think.
This card can be especially potent if combined with cards that discard from your opponent's hands, such as Discovery of Spellfire (401/3rd), Rings of All Seeing (171/4th), or even Hornung's Guess (37/UD).
I'd recommend this for any deck that can find enough casters, as it has game changing power. While it may not fully destroy the card of an opponent, it is the next best thing.