Nidorina

Poison Point

If the Pokémon is attacked by a contact move, it has a 30% chance of causing Poison to the attacker.

Rivalry

Increases damage by 25% against same gender, decreases damage by 25% against opposite gender, and does not change damage when against undefined gender.

HustleHidden

Increases the Physical damage by 50% but has a 20% chance to miss the attack.