With Pokemon insurgence hopefully adding in alola Pokemon i though why not get ahead of the trend so here is mega alola marowak A ghost/fire type 
Ability: Bone Chip (changes opponents into a ghost type when hit with a physical attack)
Stats: are the same as a regular mega marrowak
Notes: The Idea is the bones it uses as armor are all chard and is actually uses its hammer is also burnt to a crisp, That is why its bones fall off so easily