Furiadragón

Text:

Agrega a tu reserva de maná por cada criatura atacante que controlas. Hasta el final del turno, las criaturas atacantes que controlas ganan ": Esta criatura obtiene +1/+0 hasta el final del turno".

Rulings:

• 11/24/2014 Even though it can generate mana, Dragonrage isn’t a mana ability. It uses the stack and can be responded to.
• 11/24/2014 Only creatures that are attacking as Dragonrage resolves will count toward how much mana is generated, and only those creatures will gain the “firebreathing” activated ability. In other words, casting Dragonrage before you’ve declared attackers usually won’t do anything.
• 11/24/2014 Remember that unused mana empties from players’ mana pools at the end of each step and phase. For example, if you cast Dragonrage during your declare attackers step, except in very rare cases, the mana Dragonrage generates won’t last until the declare blockers step or the postcombat main phase.