Battlefield Thaumaturge

[YourMaker97]

With his second ability in spells that have X in their mana cost, will that ability take out all of the mana required for X or just 1 of it?

[Ekann1]

You wouldn't get x for free, just 1 free x for each creature. For example, {launch the fleet} would just cost 1 white and could target as many of your creatures as you want.