User blog comment:Zambu/Useless passives/@comment-5419795-20130501125117

Different champions have different parts of their kits that they rely on. For Ashe, it's her Q and ult. They let her endlessly kite her enemies and provide utility. Her passive is just a small bonus to her already fairly strong kit (though she could use some slight buffs). For Nasus, he was designed as a toplaner. If he didn't have good sustain on his passive, he'd get out-traded hard by almost any other toplaner. Zyra has a very strong suite of crowd control, scouting, and damage (if you build AP). Her passive is just there to help provide a little damage if she gets focused. If she didn't have any passive, SHE WOULD STILL BE A STRONG CHAMP. Not quite as good, but still a competetive pick. See where I'm going?