During your turn, this creature has flying. Whenever this creature attacks, you may pay . If you do, creatures you control get +X/+0 until end of turn, where X is the number of opponents you have.
原文While resolving Embereth Skyblazer's triggered ability, you can't pay multiple times to increase the bonus.
2019/10/04
原文The value of X is determined only as Embereth Skyblazer's triggered ability resolves. It doesn't change later in the turn if opponents leave the game.
2019/10/04
原文In a multiplayer game, opponents who have left the game before the ability resolves aren't counted by Embereth Skyblazer's triggered ability.