Ash's Snivy/Anime/Personality and characteristics

Snivy is nothing less than a Pokémon shrouded in mystery. It is speculated that she had a previous Trainer whom she left because they did not meet her expectations, but she seems to have found what she had been searching for in Ash. It appears that Snivy was looking for compassion and loyalty from a trainer, as it kept remembering Ash's multiple self-sacrificial actions in which he prioritised his Pokémon's safety above his own. This may be the reason Snivy left her previous trainer, which shows that Snivy has little tolerance for selfishness and only respects those who treat her and her fellow Pokémon with respect. She tends to show no emotion except for when she is battling, even then moving as gracefully as she does outside of battle. Snivy is a fierce competitor and will take each battle that she participates in seriously. She is very mature psychologically, as seen when Ash's newly hatched Scraggy attempted to attack her and she did not utilize her full strength when stopping him. Though Snivy is distant, she still knows all of her Pokémon companions well and watches out for them whenever their Trainers cannot as seen in episodes like Emolga and the New Volt Switch! and Scraggy and the Demanding Gothita!.

Ever since Iris's Emolga joined the team, she and Snivy have gotten into a few disagreements. Snivy did not like how Emolga used her cuteness to get what she wanted as seen in Emolga and the New Volt Switch! and was pretty much the only one able to see through it. As shown in Facing Fear with Eyes Wide Open!, she still holds animosity towards Emolga. In Movie Time! Zorua in "The Legend of the Pokémon Knight"!, Emolga and Snivy were seen fighting again which resulted in them knocking over paint, causing paint to cover their Trainers. Behind her tough exterior, Snivy actually cares deeply about her friends, as seen in Evolution by Fire!, where she comforted Tepig when he was disappointed by his former Trainer and was later seen hugging a newly evolved Pignite along with Ash while laughing, making it one of the few times she ever laughed.