Emrit

Mesprit is a small, gray, fairy-like Pokémon. It has two tails that each have a red jewel encrusted in them. Mesprit has a partially magenta face with another red gem encrusted in its forehead. From near the top of its head, four long, drooping, magenta appendages extend, to which the four black aura-sensing appendages on the head of are similar in shape and number.

Along with and , Mesprit is one of the lake guardians created by . It is known as the Being of Emotion in Sinnoh myths.

Mesprit's spirit can leave its body without dying and return to the body at will. Legends say that a person that touches it will have their emotions completely drained away. Mesprit was highly feared due to it punishing those who disrespect it by throwing their emotions into disarray. It is said to have taught humans the ability to feel sorrow, pain, and joy, leading it to be referred to as the "Being of Emotion" in the past. It was shown in The Needs of the Three! (DP151) and The Battle Finale of Legend! (DP152) that it can teleport itself, as well as other Pokémon and humans. Though playful, it is a bit mischievous. Alongside the other lake guardians, Mesprit is needed for the creation of a Red Chain, either through gems extracted from its body or through its plume. Together, they're also capable of destroying a Red Chain. They even have the power to calm down or should they be enraged, but not both at once. Mesprit lives in Lake Verity, specifically in the Verity Cavern at the center of the lake, thus gaining its title as a lake guardian. In Pokémon Legends: Arceus, Mesprit is shown to be capable of speaking human language via telepathy.

(Source: Bulbapedia)