Oracle

Sorcery 

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.
Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

8/1/2008
Casting a card by using its retrace ability works just like casting any other spell, with two exceptions: You’re casting it from your graveyard rather than your hand, and you must discard a land card in addition to any other costs.

8/1/2008
A retrace card cast from your graveyard follows the normal timing rules for its card type.

8/1/2008
When a retrace card you cast from your graveyard resolves, fails to resolve, or is countered, it’s put back into your graveyard. You may use the retrace ability to cast it again.

8/1/2008
If the active player casts a spell that has retrace, that player may cast that card again after it resolves, before another player can remove the card from the graveyard. The active player has priority after the spell resolves, so they can immediately cast a new spell. Since casting a card with retrace from the graveyard moves that card onto the stack, no one else would have the chance to affect it while it’s still in the graveyard.

8/1/2008
Waves of Aggression untaps all creatures that attacked this turn, not just those that attacked during the most recent combat phase.

8/1/2008
If it’s somehow not a main phase when Waves of Aggression resolves, all it does is untap all creatures that attacked that turn. No new phases are created.

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