Most megas I had on the Mega Month list had a reason. Filling in gaps, adding more spice to regions that are lacking, giving megas to Pokémon that 100% should have existed from the beginning. Heliolisk is a personal choice, since it's a Pokémon I consider very underrated.
Mega Heliolisk gets blue electric sacs along it's body to contain all the energy it contains, and alongside some sick red accents. If it was an animated sprite or model, the sparks along it's neck frill would probably move around.
by AsterMachina