If my opponent has a card with "Colress" in its name in their Discard Pile and Pokemon League Headquarters is in play, can I use Kyurem's "Trifrost" attack with only one energy attached due to its "Plasma Bane" Ability?
Kyurem's Plasma Bane ability sets Trifrost's attack cost to one. Since the attack cost has been set to a specific number, Pokemon League Headquarters does not add to it.
Source: TPCi Rules Team (2024-09-12)

Relevant cards

Note: All applicable cards may not be listed below.
SV65_47
SV65_47
SV3_192