Cross-element opp spends

By sidescroller, in Rules Questions

The beta provided an option for opp spends: for any element, you could resolve an opp from a non-opposite, non-void element for double cost (e.g. fire could use air and earth) (void could use any other element's opportunity for double cost).

I'm not seeing this in the final published version. Am I missing it? Is it gone? Is it a good or bad idea?

I think there’s a sidebar in the final version where it is presented as optional.

5 minutes ago, Franwax said:

I think there’s a sidebar in the final version where it is presented as optional.

Correct, it's on p. 298.

Thank you!

I was trying to figure out how to use a subtle insult (air) to throw some strife at someone.