With its Herculean powers, it can easily throw around an object that is 100 times its own weight.
– Pokemon Y Pokédex
Mega Heracross reminds me of kids who are bundled up so much for winter that they can hardly move.
It has ridiculous 185 base attack. It has the ability Skill Link, and learns various multi-hit moves to be able to use it well. Unfortunately its speed is middling, and with Talonflame running rampant in gen 6 and its 4x weakness to Flying, I don’t see it getting used a lot. Maybe with the gen 7 nerf to Gale Wings Mega Heracross will see more use.