I am currently playing in my Omega Ruby game on my 3ds and I have one last slot on my team before I challenge Steven. Please help me. I am running out of ideas. My team is Blaziken, Milotic, Manectric, Gardevoir, and altaria
Most of his Pokemon are weak to fire, water, or fighting, so I think the best mega Pokemon would be Blaziken, Swampert, and Gyarados.
I think metagross becuase it has a good attack and Special attack
If you dont have metagross I would have latios with dragon pusle wich has good STAB.
A tip for the Elite 4 is have like 40 revives and about 50 (ish) hyper potions
Hope this helped