RulingRules Reference 1.7
Can Finesse generate a resource to pay for an aspect card’s ability (such as Jarnbjorn)?
Question
Can Finesse generate a resource to pay for an aspect card’s ability (such as Jarnbjorn)?
Answer
Yes. As long as the resource generated by Finesse is spent on an aspect card (its resource cost or a cost within that aspect card’s ability), Finesse can be used.
— Rules Reference 1.7