Ekko Needs a Rework

> I'm a hardcore Ekko fan, or at least I was when tank Ekko was at it's best. Ekko's whole kit screams tank instead of assassin so even with all these nerfs I can still find new ideas and builds that make tank Ekko work but that's kinda Riot's problem here, they're trying so hard to make a tank champion kit work as an assassin, I mean look at his kit, his Q applies a slow and for an assassin who should be able to make his kills quickly this slow is unnecessary plus his Q has a higher scaling of AP for the return damage as if expecting his fight to last that long in order to apply that damage, if he were build full AP his enemies are normally dead before the time winder returns making the return damage kinda useless at late game, Rengar's E would seem like a decent argument but Rengar also has three other damage abilities while Ekko has to rely on the damage and slow from his Q at the same time which would be very useful for a tank that tends to stay in combat for a decent amount of time. His W is also the same problem, it takes an unnecessary amount of time for an assassin plus the passive damage that his W gives him is useless for a high damage assassin whose targets are squishy back line champions. When an enemy is at 30% health Ekko's E alone should be enough to finish them off without the need for that passive. Now Ekko's E is a decent assassin ability, it makes for a slippery champion with great engage to easily catch his prey and make great out plays and escapes but that's the only ability that is great for an assassin within Ekko's kit. Ekko's ultimate ability would seem great for disengage after killing a target but if it takes to long to kill the target then it no longer becomes a great escape and it's not amazing engage because it takes you backwards, you could only engage with it if your enemies were standing right where you were 4 seconds ago so it's a very conditional engage which isn't very helpful for an assassin and the damage, as high as it is, tends to be wasted either because you got caught out and needed a quick escape or your target is already dead and you just want the heal, so this leaves Ekko's passive, his Q, and his E for damage and since his Q's scaling is higher for return damage and his E is mostly for the engage and not the damage(unless you have Lich Bane in which his E does a good amount of damage for an assassin) so that leaves his three hit passive to do all the damage and holy hell it does a lot of damage when built full AP, but because most of his damage is in his passive then that would mean his other abilities are basically only used to stack his unoriginal and overused 3 hit passive. Any CC that prevents Ekko from popping his passive is all it takes to prevent Ekko from killing anyone making him a very unreliable assassin, he's not unusable, he's just unreliable. Ekko either needs to be pushed back into a tank as his kit would imply that he should be or just straight up rework his kit. I've thought about it for a while and I've come up with many ideas that could make Ekko a reliable assassin worthy of the title Boy Who Shattered Time but it's still a work in progress. As much as I like Ekko I'd like more to see him fixed and balanced.