using a Megazard with no hazard control isn't the greatest thing we could do. For that reason, I nominate ur good pal Mega Gardevoir. It has a massive special attack stat, STAB Pixilate Hyper Voice, a base 100 speed that makes it perfect for receiving a Smash pass, and solid coverage moves in Focus Blast and Shadow Ball. STAB Psyshock also means it isn't ruined by blobs.