On Sunday, June 6, from 11 a.m. to 5 p.m., in local time zones, Gible will be a featured Pokémon for a community day in Pokémon GO, and any Gabite that evolves into a Garchomp will be able to learn Earth Power.
Written in a blog post on the official Pokémon GO website, Gible, which is notoriously difficult to catch on a regular occasion, will have increased odds of appearing in the wild. In addition, the odds of finding a shiny Gible are increased as per the event as well.
The fame for this specific land shark Pokemon is not for its original form, but rather for what it can evolve to, Garchomp. Garchomp is a powerful Pokemon that has been a popular add for players due to its damage in relation to even some of the legendary Pokemon. An added kicker to this event that has fans wanting to play is the ability that Garchomp can learn, Earth Power.
Earth Power is one of the most powerful moves on a Pokémon to get in Pokémon GO, and to get a Garchomp that can learn the ability is definitely worth having a multitude of in a player's arsenal. As part of the event, any Gible that fully evolves into a Garchomp will allow for players to have a Garchomp that learns the ability.
One can only assume how strong a Garchomp can be when Mega Evolution comes into play. Researched by Reddit user, Merlion4ek, the only other Pokémon that can out damage a mega-evolved Garchomp will be Primal Groudon with Precipice Blades. Garchomp as a base Pokémon will still be one of the most powerful due to its damage with just because of Earth Power alone.
Aside from the Gibles and Garchomps that players will be hoarding, the community day features some other bonuses like higher catch XP and Incense that is activated during the event will be able to last for three hours.