Oracle

Artifact 

T, Put the top card of your library into your graveyard: For each colored mana symbol in that card's mana cost, add one mana of that color. Activate this ability only any time you could cast an instant. (For example, if the card's mana cost is 3UUB, you add UUB.)

Tournooi-info

Legal in: Vintage, Legacy, Commander

Officiele rulings

10/4/2004
The ability is still a mana ability (and doesn’t use the stack) even though you can only activate it when you could cast an instant.

11/1/2005
If you flip over a hybrid card, you get one of either color mana, not both, for each mana symbol.

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