Master Roshi, Turtle school Patriarch

[Permanent] For every green "Turtle School" card in your Z-Energy, reduce the energy cost of this card in your hand by 1. [Auto][Limit 1] When this card is played, reduce the energy cost of "Son Goku, Krillin, & Yamcha, Turtle School Inheritors" in your Z-Deck by GG for the turn.