Poké-BODY ⇢ Star Light
As long as your opponent has any Pokémon-ex or Stage 2 Evolved Pokémon in play, Jirachi ex pays {C} less Energy to use Shield Beam or Super Psy Bolt.

{P}{C} → Shield Beam : 30
During your opponent’s next turn, your opponent can’t use any Poké-Powers on his or her Pokémon.

{P}{C}{C} → Super Psy Bolt : 50