Nice Build, I think Mega-Metagross is one of the top VGC Megas.
I run 20Hp, 232Atk, 4Sdef, 252 Spd; Jolly Nature
110 Base Speed is just way to good to give up (at least that is what I think).
The spread allows to survive Timid Gengar 252 Satk Shadow Ball at full health and Adamant Bisharp 252 Atk Sucker Punch from Focus Sash Bisharp at full health.
I run 20Hp, 232Atk, 4Sdef, 252 Spd; Jolly Nature
110 Base Speed is just way to good to give up (at least that is what I think).
The spread allows to survive Timid Gengar 252 Satk Shadow Ball at full health and Adamant Bisharp 252 Atk Sucker Punch from Focus Sash Bisharp at full health.