I’m wanting to settle a rules debate around Paying vs Overpaying, and how it relates to The Power Of X…

Question

I’m wanting to settle a rules debate around Paying vs Overpaying, and how it relates to The Power Of X cards. Take the new ally for Wonder Man, Firebird. This is a 2 cost ally with an ability that only triggers when having overpaid. Could I Pay for Firebird with Power of Justice (generating two resources) and simultaneously Overpay with a third resource from another source, getting the rebirth counter? Or, would I need to not Overpay at all for Power of Justice to generate two resources, since that only triggers when Paying?

Answer

— Alex