Ronda is Toxic
So, I just put Ronda in a Toxic set, and when the enemy is at < 50%, she can actually poison twice in a single attack. With her passive, she fills the debuff bar by herself.
Does this apply to other conditional extra hitters? Wondering about Skullsworn (the farmable rare), as I know he has some wonky coding and can actually place more than 3 hits with his A1.