What happens if I play Iron Leaves ex and use its "Rapid Vernier" Ability to move to the Active Spot while my opponent has an active Flutter Mane with "Midnight Fluttering" Ability? Can I not move to the Active Spot? Or can I move to the Active Spot but not move any Energy to Iron Leaves ex?
Rapid Vernier becomes active when Iron Leaves ex comes into play, and because its Ability is initiated on the Bench you get to complete all of its actions before Midnight Fluttering deactivates it.
Source: Temporal Forces FAQ; TPCi Rules Team (2024-03-21)

Relevant cards

Note: All applicable cards may not be listed below.
SV5_25
SV5_25
SV5_78
SV5_78