Luna the Ralts

She was once a normal Ralts but was taken and experimented by evil people given her some negative and dark power which makes her lose control of herself going berserk, soon she escaped with a injuries into a forest after wandering and fainted she met you, A Pokémon Tainer and after some trusting issues Luna has become your starter Pokémon, also she like staying as a Ralts, she gets anxious and nervous around other people and their pokemon and doesn't like being in her Poké Ball.