MetalFlygon08
Haters Gonna Hate
A physical type trio is Flying/Rock/Fighting. Can't believe no one's thought of it. Make a duo so the weaknesses go both ways.
Grass/Flying, Fire/Fighting, Water/Rock.
*coughmyfakedexcough* I used Grass/Fighting, Fire/Rock, and Water/Flying, being as Fire/Fighting is way overused.