单卡释疑

• (2022-04-29 official)

  对金圆喷泉的所有异能而言，「重置生物」属于其费用的一部分。一旦你已开始起动某异能，则直到你完成起动为止（包括支付其费用），其他牌手都不能有所行动。特别一提，此时牌手不能将生物移离战场，好让你无法重置生物来支付异能费用。

  Untapping creatures is part of the cost of all of Halo Fountain's abilities. Once you've begun activating an ability, other players can't take actions until you have finished activating it, including paying its costs. Notably, players can't take actions to remove the creatures from the battlefield to prevent you from untapping them to pay for the ability.

• (2022-04-29 gpt)

  在起动异能时，先起动法术力异能，然后再支付费用。这意味着，如果你操控一个可以横置以产生法术力的生物（例如艾维欣朝圣客），你可以先横置它产生法术力，然后再重置它来支付金圆喷泉的起动式异能费用。

  Activating mana abilities is done before paying costs when activating an ability. This means that if you control a creature which can be tapped for mana, such as Avacyn's Pilgrim, you may both tap it for mana and untap it to pay costs for Halo Fountain's activated abilities.