Statuaire inspiratrice

09/02/2017

Because improvise isn’t an alternative cost, it can be used in conjunction with alternative costs.

09/02/2017

Improvise can’t be used to pay for anything other than the cost of casting the spell. For example, it can’t be used during the resolution of an ability that says “Counter target spell unless its controller pays .”

09/02/2017

Improvise doesn’t change a spell’s mana cost or converted mana cost.

09/02/2017

Multiple instances of improvise are redundant.

09/02/2017

Tapping an artifact won’t cause its abilities to stop applying unless those abilities say so.

09/02/2017

When using improvise to cast a spell with in its mana cost, first choose the value for X. That choice, plus any cost increases or decreases, will determine the spell’s total cost. Then you can tap artifacts you control to help pay that cost. For example, if you cast Whir of Invention (a spell with improvise and mana cost ) and choose X to be 3, the total cost is . If you tap two artifacts, you’ll have to pay .