EDIT(11/11/13): Added BST provided by .
EDIT(09/27/13): Fixed missing killer claw.
*New Move: Talon Kick
The user leaps and slashes the target with a terrible claw. If the move lands a critical hit, the damage is doubled.
*Also learned by certain Bird Pokemon.
Mega Archeops © Dragonith
Pokemon © Nintendo/Game Freak
EDIT: After thinking about it that might be a bit broken.
Mega Archeops ability: Optimist, When at 1/2 or less of its max HP, its Attack and Sp Atk are doubled...
I don't know if I'm okay with this mega-evo, but it's an okay concept.