Fiora's passive is not how to do a "mini game".
When the Fiora rework came out Riot said her new passive is like a mini game. A mini game in this game should be something like Bard's Passive or Draven's Spinning Axe. Both are good risk VS reward. During lane if Bard roams for his chimes then his ADC is alone and can get punished by the enemy. Once laning phase is over does Bard roam into unwarded areas for his Chimes with the risk that an enemy could be in there? Draven's Spinning Axe gives him a lot more damage, like Fiora's passive, but unlike Fiora's passive if Draven wants to keep doing that damage he has to put himself into potentially dangerous positions. It also actually takes skill. Fiora's passive is all luck and reward with little risk. If it spawns facing her in lane then the opponent ether has to back off, get ready for her to come in for it or just take some free percent health true damage. If it spawns behind the opponent then she just waits for the next one with nothing lost. I've seen many fights Firoa won solely because her passive kept spawn facing her. That's not skill. That's the opponent getting beat to death with horrible RNG. That's what I hate the most about her passive. When ever I die to a Fiora I don't feel like I got out skilled most of the time. I just feel like I got horrible RNG.