Page 152 describes creating an asset as being like creating a trait, which
must relate to the action you’ve just attempted.
So I imagine something like:
I attempt to intimidate the thugs who’ve cornered us. [Rolls dice] Oh look: 2 extra successes. Well, in that case, I drawl “that’s not a knoife, this is a knoife”, and pull a large bowie knife from my boot. I’m creating an asset using the 2 extra successes.
Note that as I spend the momentum (or potentially determination), I know that I’m going to create the asset (in this example, a quality 0 knife) successfully.
On page 168, we are told that (in a conflict) creating an asset is again like creating a trait, and that one must
…attempt a skill test with Difficulty of 2. If you pass, then you’ve managed to create the desired trait.
In the following example, we are told
Kara’s player spends Momentum and makes a test to create a new intangible asset of ‘security access’.
So presumably, in a conflict, one still has to pay Momentum or Determination, but now also has to pass a test.
What happens if the test fails? Does the Momentum/Determination still get spent? If it gets spent, then this is a very different treatment to outside of conflict, where (if my example of the knife creation is correct), there’s no risk of wasting Momentum/Determination when I go to create an asset.