闪现

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你可以将一张生物牌从你手上放进战场。如果你如此作，则除非你支付其至多减少的法术力费用，否则牺牲之。

Rulings:

• 3/16/2018 If the creature has <img src="/Handlers/Image.ashx?size=small&amp;name=X&amp;type=symbol" alt="Variable Colorless" align="absbottom" /> in its mana cost, X is considered to be 0.
• 3/16/2018 Only the generic mana in that creature’s mana cost is reduced. For example, if that creature’s mana cost is <img src="/Handlers/Image.ashx?size=small&amp;name=1&amp;type=symbol" alt="1" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=R&amp;type=symbol" alt="Red" align="absbottom" />, you’ll have to pay <img src="/Handlers/Image.ashx?size=small&amp;name=R&amp;type=symbol" alt="Red" align="absbottom" /> to keep it.
• 3/16/2018 The creature enters the battlefield, so it will trigger enters-the-battlefield abilities even if you choose not to pay.
• 3/16/2018 If you choose not to pay, the creature is sacrificed immediately. No player will get priority in between the creature entering the battlefield and being sacrificed. Sacrificing the creature this way will trigger any abilities that trigger when it leaves the battlefield, and those abilities will be put onto the stack at the same time as those that triggered when it entered the battlefield.