Cheerio

Skye's Cherrim, (Skye's Cherrim), nicknamed Cheerio, was the sixth Pokemon obtained by Skye during her travels through the Sinnoh region. Skye and Summer competed to catch the cute Pokemon, chasing it through a forest until the two used their Pokemon to attack and knock out the Cherrim. Skye managed to catch it, and Cheerio has since become a vital asset to Skye's team. She's a bit vain and stuck-up, but Skye uses these often-negative personality traits to her advantage in battles, powering up Cheerio's confidence so she does, overall, a better job in battles.

History
Skye and Summer saw the cute little cherry blossom Pokemon dancing in the branches of a tree while the girls, alongside John and David, moved through a forest on their way to Hearthome City. The two girls competed to catch it, each using their own Pokemon roster to fight against Cherrim, eventually knocking it out. Skye threw a Poke Ball first, and caught her.

Cherrim has a very vain personality, often attempting to draw attention to her beauty by dancing at inappropriate times, like during the battles against Team Galactic at Spear Pillar and Stark Mountain.

Cherrim became a huge asset to Skye's team, using her powerful attacks to even overcome foes with type advantages over her (like defeating Candice's Piloswine). Cherrim has become one of Skye's most-used Pokemon, especially near the end of her journies through Sinnoh.

Following her journies through Sinnoh, Skye dropped off Cheerio and the rest of her Pokemon at her house, starting with a clean slate for her travels through Unova.