I can field two Luxrays, one Zebstrika and one Eelektross for Electric-types, along with Meganium, two Lilligants, Cradily, Trevenant, Roserade and Chesnaught for Grass. Were you thinking of using specific moves, or is the Pokémon's type most important? Plenty of my other team members can hit those weaknesses, if needed.

[Even his Blissey could, theoretically, use Thunder Punch. But why would anyone try that?]