From PokéHeroes Wiki
A Groudon holding a Red Orb was distributed to users during the ORAS Event if they were on the top 200 for the Mass Clicking event.
|EHP:||EXP to level 100:|
|Normal form||Primal form|
Groudon does NOT evolve.
Groudon can change into it's Primal Form when it is holding a Red Orb.