协力

万智牌机制

本系列部分瞬间法术与法术牌带有协力异能。协力为施放该类法术时可选择支付的额外费用。若你选择以协力方式施放一张法术，请查看协力异能中所注明的数值，并横置任意数量由你操控的未横置生物，只要这些生物的力量总值大于或等于该数值即可。协力可以提供额外效应，也可以提供升级后的效应。请仔细阅读每张协力牌，以便确切了解你的队伍将面对什么。

协力规则

A keyword ability that represents an optional additional cost of tapping creatures. See rule 702.194, “Teamwork.”

702.194a： Teamwork represents a static ability that functions while the spell with teamwork is on the stack. “Teamwork N” means “As an additional cost to cast this spell, you may tap any number of creatures you control with total power N or more.” Paying a spell’s teamwork cost follows the rules for paying additional costs in rules 601.2b and 601.2f–h.
702.194b： Abilities may refer to a spell cast “using teamwork” or similar. Such phrases refer to whether the player who cast the spell declared the intention to pay the spell’s teamwork cost as they cast that spell.
702.194c： If part of a spell’s ability has its effect only if teamwork was used to cast it, and that part of the ability includes any targets, the spell’s controller chooses those targets only if teamwork was used to cast that spell. Otherwise, the spell is cast as if it did not have those targets. See rule 601.2c.