Power Herb as an ability

[pingas plight]

I'm trying to make a custom ability for Dialga that makes recharge (I.E. Hyper Beam) and charge (I.E. Solar Beam) moves instant. I've got the former down tight, but the Power Herb is just not working. I've tried having the @powerherb check be both for the item and ability, I've tried creating a second check under the "If @powerHerb" check, but nothing worked. If anyone has any ideas, I'm open to everything.