Subrule · Chapter 1
cr:1.7.5e
If the number or the availability of modes is affected by a conditional or an undetermined parameter, the conditional or parameter is evaluated at the time the modes are selected.
Example: Sacred Art: Undercurrent Desires has the text “If you’ve played another blue card this turn, choose 3. Otherwise, choose 1;” The number of modes is determined at the time Sacred Art: Undercurrent Desires is played, and the modes are selected, not when it resolves.