Can you generate power during the resolution of Bullet Time (after it has been cast and priority has passed), or do you need to generate power before passing priority?

Ruling: You can generate power during the resolution of Bullet Time using Reaction: Add abilities, even though you don't have priority during resolution. This is explicitly allowed by the rules for any spell or ability resolution that requires resources to be paid.

Sequence:

• Play Bullet Time and pass priority
• Opponent passes priority
• Bullet Time begins resolving
• During resolution, you can use Reaction: Add abilities to generate power
• Choose how much power to pay and resolve Bullet Time's effect

Nuances:

• This permission applies to any resolution that requires resources to be paid, not just costs paid when casting
• You can generate any type of resource during this window (both power and energy), not just the specific resource type being paid
• The rule allowing this is the same one that permits generating resources during the payment of spell costs