席穆嘉族杀手

Text:

力量大于席穆嘉族杀手的生物不能阻挡它。
威力变身（你可牌面朝下地施放此牌并支付，将其当成2/2生物。可随时支付其威力变身费用使其翻回正面，并在其上放置一个+1/+1指示物。）
当席穆嘉族杀手翻回正面时，消灭目标由对手操控且力量等于或小于3的生物。

Rulings:

• 2/25/2015 The powers of Silumgar Assassin and the creature trying to block it are checked only as blockers are declared. Changing the powers of either of those creatures after Silumgar Assassin is legally blocked won’t change or undo the block.
• 2/25/2015 Turning a face-down creature with megamorph face up and putting a +1/+1 counter on it is a special action. It doesn’t use the stack and can’t be responded to.
• 2/25/2015 If a face-down creature with megamorph is turned face up some other way (for example, if you manifest a card with megamorph and then pay its mana cost to turn it face up), you won’t put a +1/+1 counter on it.
• 2/25/2015 Megamorph is a variant of the morph ability. You can find more information on morph on cards with morph from the Khans of Tarkir set.