Beedrill
Ability: Sniper
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- X-Scissor
- Poison Jab
- Knock Off
- Drill Run
I see Mega Beedrill being UU or BL2, since with boosted atk and speed, and adaptability, this thing is going to hit hard. I wanted it to be OU, but with Skarmory running around, I doubt that is likely. Though with nice coverage with Knock Off, Drill Run, Brick Break, and Aerial Ace, it is able to hit bulky Pokemon decently hard.
Glalie
Ability: Inner Focus
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Explosion
- Return
- Earthquake
- Ice Shard/Taunt
I see Mega Glalie however, being UU or BL, with a STAB Explosion that hits basically everything decently hard, and everything that it doesn't hit hard, it has Earthquake for.
Altaria
Ability: Natural Cure
EVs: 252 Spe / 8 Atk / 248 SpA
Hasty Nature
- Draco Meteor
- Fire Blast
- Hyper Voice
- Earthquake
Too bad this thing was overshadowed by Mega Lopunny
and the massive amount of Rule 34 with it, this thing has serious potential. With Pixilate, this thing's Hyper Voice is going to hit like a truck, and with STAB Draco, Fire Blast for Skarmory and Ferrothorn, and Earthquake for Heatran, this thing is going to be a good wallbreaker. Definitely OU or BL.
Camerupt
Ability: Solid Rock
EVs: 252 HP / 4 Atk / 252 SpA
Quiet Nature
- Fire Blast
- Earth Power
- Rock Slide (Did not realize Stone Edge wasn't Sheer Force boosted)
- Roar/Hidden Power Grass
RU or UU, this thing's speed and typing is going to be the death of it. Too many water and ground types running around, but with Sheer Force, it is still going to hit pretty dang hard.
These are just my favorite new megas so far, and I'm sure I will put my opinion on more of them.