Fiora's passive is just a better version of Quinn's passive
They both show "Vulnerable" spots.
Fiora's is almost immediate in succession only on champs vs Quinn's has a 4.5 sec delay on any target
Fiora's proc deals true damage, gives her health and ms vs Quinn's deals attack damage
Fiora's ult gives her 4 additional vital points and etc etc fancy stuff vs Quinn has her E that guarentee's her passive on the target
Quinn's passive is very clunky/bug ridden
Quinn's has no passive when she ults
Quinn's passive doesn't proc on autos DURING the marking. Only afterwards. That shit fucks you over many many times per game.
Quinn needs help