Rajin, your sooo lucky Magnus's Gardevoir can't mega evolve. A Mega Gardevoir chews up dragons like they're nothing. Same with Mega Mawile, but at least Gardevoir can fight in non-mega form. lol. Though Mega Mawile chews anything without a high defense up, sometimes literally...xD

Mega Gardevoir + Togekiss with Follow Me or Helping Hand is hilarious. Togekiss removes the slight speed problem Mega Gardevoir has and can flinchlock nasty counters if my talonflame or whatever I use to counter what hurts Mega Gardy is dead. plus a helping hand + hyper voice combo often oneshots anything that doesn't resist it. Mega Gardevoir is sooo good. xD. Not Mega Khangascar good, but then that thing is just bloody broken.

Fairy type is just silly. Its a great defensive and offensive type, lol... Especially since its weaknesses are all very defense or just poor in general types.