His ult is gamebreaking LMAO. It goes to show your intellect.
Lets see what he had: Point and click silence. Basic attack enhancer, that passively granted him mana and a tad bit of magic damage on hit, just to help him last hit. AoE slow that needs charges to be even available, an ult that did nothing but give mobility. A passive that gave him % magic damage reduction which turned into attack speed, was usefull ONLY WHEN HE TOOK MAGIC DAMAGE.
Lets see what an actual champion has: massive range poke skillshot, which can be reactivated to dash to them, dealing extra damage based on their missing health. On demand shield which could be used to shield, wardhop, championhop, minionhop. Can be recast for extra lifesteal and spellvamp. AoE damage instanuke, can be recast to slow ALL THE TARGETS THAT GOT HIT(100% bonus AD). Average cooldown ultimate with great base damage and insane AD ratio, that has ridiculous utility and gamechanging capabilities(200% bonus AD). Uses energy as a resource, which can be regenerated even faster thanks to his dumb passive.
Lets see what another champion has: Long range reliable physical damage poke projectile that travels through multiple targets. W that gives near-instant on demand mobility which allows him to duplicate his 2 other basic spells. Increasing his basic AD by a percentage, turning him into a late game monster with 400+AD. AoE physical damage slowing spell. An ultimate that makes him untargetable and acts as a dash on cast, and then as a get-away-from-jail-free card with a disgusting range, as well as allowing him to FREAKING TRIPLICATE 2 of basic spells. Then, does extra damage based on itself, and the damage dealt while a "special" mark was in place. A passive that does bonus magic damage on hit increased with % missing health to a target with lower HP than a specific threshold at certain intervals. Uses energy as a resource, and, being the ridiculous "AD caster/assasin with a spammable skill rotation" he is, thanks to his bullshit mobility and skills' passives can freely regenerate bonus energy every time he hits a champion, basically doesn't even get punished for bad plays.
A gamebreaking ultimate that does nothing but give spammable mobility for a champion who has had one of the worst laning phases with some of the most boring and binary abilities. A champion that had(and still has) to compete with the likes of Akali, Ahri, Orianna, Ryze, Lissandra, Annie, Yasuo, Azir, Anivia, Brand, Viktor, Malzahar, Heimerdinger, Nidalee, Xerath, Velkoz, Zyra, Talon, Syndra, Veigar, Vladimir, Twisted Fate, Lux, Cassiopeia, Fizz, Galio, Diana, Ekko, Jayce, Gragas, Morgana, Mordekaiser, LuLu, Cho Gath, AP Ezreal, AP Kog Maw, Katarina.
And lets not forget the samefull disgrace of a pathetic half-assed rework and visual update, that made him completely unviable and insulting to play with.
Get good.
It's not how many passives you have, it's how you use 'em