During a recent update to the official Pokemon site, it was announced that participants in the Battle of Hoenn competition would receive a Tyrunt with its Hidden Ability as an entry gift.
The website states that this Tyrunt has its Hidden Ability Rock Head. However, this statement may be erroneous, as Tyrunt's Hidden Ability is Sturdy; the Hidden Ability of its evolution, Tyrantrum, is Rock Head.
Registration for entries open at midnight, January 16 UTC and players need to participate in at least three matches and not be disqualified to earn the prize. The Tyrunt will be available for players in all regions.