Chilly_Seth

Just a sneasel living out his life. He sometimes gets mistaken for a girl due to his pink shiny coloration and has grown to get used to it a bit. He tends to be shy at first and worries about becoming captured by a pokemon trainer.
He loves the cold and sweets. He may feel warm on the outside, but his insides are pretty cold. He can control his body temp and freeze and unfreeze whatever he feels like.
Seth has been on past adventures of going through mystery dungeons before arriving to Nexus. From it, he's gained many riches such as pearls and lots of gold. He'll live off well with it.
(Pic is not mine and will remove on request)

Seth can also be played as a shiny weavile that wears a cowboy hat. He appeared to have found his evolution item and the hat at the same spot.