单卡释疑

• (2022-12-08 official)

  如果某个咒语或异能的费用包括「将一个由你操控的生物移回你手上」和支付法术力两部分，则你不能在将妖精精怪向导移回你手上之后再起动它的法术力异能。这是因为你必须在开始支付费用前，就起动法术力异能。

  If a spell or ability's cost includes returning a creature to your hand and paying mana, you can't activate Elvish Spirit Guide's mana ability after returning it to your hand. This is because mana abilities must be activated before you begin paying costs.