Legacy Energy - 187/187 - SV8a: Terastal Fest ex (SV8a) ACE

As long as this card is attached to a Pokémon, it provides every type of Energy but provides only 1 Energy at a time.
If the Pokémon this card is attached to is Knocked Out by damage from an attack from your opponent's Pokémon, that player takes 1 fewer Prize card. This effect of your Legacy Energy can't be applied more than once per game.