As long as Pidgeot has any Holon Energy cards attached to it, each player's Pokémon (excluding Pokémon that has δ on its card) can't use any Poké-Powers.
You may discard an Energy card attached to Pidgeot. If you do, search your discard pile for an Energy card (excluding the one you discarded) and attach it to Pidgeot.
AnekDamian Studio
Brand2 Studio