炫威

万智牌机制

无论是在战斗中还是在战斗结束后～只要拥有异能的生物在本回合中曾宣告为攻击者，炫威异能就可以起动。不幸的是，这象征着进战场且正在攻击的生物没有机会炫威…不过如果他们本领够强，还等得到下次进攻的机会，你就可以宣扬其强威了！

炫威 Rules

A special kind of activated ability that can be activated only once each turn if the creature with the boast ability attacked that turn. See rule 702.142, “Boast.”

702.142a: A boast ability is a special kind of activated ability. “Boast — [Cost]: [Effect]” means “[Cost]: [Effect]. Activate only if this creature attacked this turn and only once each turn.”
702.142b: Effects may refer to boast abilities. If an effect refers to a creature boasting, it means its boast ability being activated.