召兽学者

Text:

敏捷：加一点任意颜色的法术力到你的法术力池中。 此法术力只能用来施放生物咒语。

Rulings:

• 8/25/2015 Mana produced by Beastcaller Savant can be spent on any part of a creature spell’s total cost, including additional costs (such as kicker costs) and alternative costs (such as dash costs). It can’t be spent to pay the costs of abilities of creatures you control.
• 8/25/2015 Mana produced by Beastcaller Savant can’t be used to activate an ability or cast an instant or sorcery spell that creates creature tokens.