In light of the recently confirmed, (After like a thousand years), Hoenn remake, I decided to randomly select a legendary Pokemon from the Hoenn region, and it ended up being Jirachi.
Ability: Serene Grace
Weight: 8.5 lbs
SP. ATK-140 SP. DEF-125
Mega Jirachi draws in energy from the stars, using its fabric-like tendrils, which will boost its Powers for battle.