Tatiana, is a mix of a Leafeon and a Yveltal. She can produce pheromones and could make someone fall for her easily, she's a bit flirty and goes overboard sometimes. But she mostly keeps a straight face. She carries an automatic gun named the Black Mamba which carries poison bullets and it's silent. She's also a demon, also sometimes she's almost naked or. . . bathing in lava.
She mostly loves poisonous weapons. But she rarely fights. 
She has 2 ex boyfriends, explaining her depression.