Back to Items 
Effect / Mechanics
Held: Allows Aggron to Mega Evolve into Mega Aggron.
Source: PokeAPI
In-game description
"One of a variety of mysterious Mega Stones. Have Aggron hold it, and this stone will enable it to Mega Evolve during battle."
Fling Power
80 Power
Power of the move "Fling" when using this item.