幼龙

Text:

飞行
：幼龙得+1/+0直到回合结束。 在结束步骤开始时，若此异能于本回合中起动了四次或更多，则牺牲幼龙。

Rulings:

• 10/1/2009 The first three times Dragon Whelp’s ability is activated in a turn will do nothing other than give it +1/+0 until end of turn. Any subsequent activations will also cause its delayed triggered ability to trigger. That means if you activate Dragon Whelp’s ability five times, for example, two different delayed triggered abilities will trigger at the beginning of the next end step and cause you to sacrifice Dragon Whelp.
• 10/1/2009 If the fourth (or more) time Dragon Whelp’s ability is activated during the same turn happens to be during that turn’s end step, the delayed triggered ability won’t trigger until the beginning of the next turn’s end step. You’ll have to sacrifice Dragon Whelp at that time.