New Void-Assassin Champ For TFT

With the new rework to Void champions they are finally slightly viable, but having 2 brawlers and an assassin as their classes they can be hard to fit into comps. I remember back in the early stages of the game when void-assassin was viable when sadly it isn't now due to the game usually being close to over by the time you manage to hit level 8 with assassins, with that being ever you dieing (most of the time) or you some how winning because you managed to get 6 assassins, but that still excludes the voids. Also after try a few games of Dota auto chess (For TEST PURPOSES I personally hate the majority of the features), I realized there are no ranged assassins in TFT which surprised me which leads onto my idea....

Kai'sa (Probably the normal KDA skin as in my opinion it has the best splash). Cost:$3 Health:600/1050/2050 Damage Per Shot: 45/90/190 Ability: I couldn't really decide between Caustic Wounds or Killer Instinct so comment which you think would be better. Caustic Wounds is her passive that has stacks and deals a set amount of extra damage per level on the 5th shot (100/150/250). This would work well with attack speed making for her to go in and quickly assassinate the back lines with this passive however it is also very similar to vayne. On the other hand Killer Instinct would be good as it would allow her to go in and take out their backlines before teleporting out gaining a shield (250/350/500) that scales with AP, making her viable to go both sets of items. Attack Speed: 0.60 Attack Range: 3 Hexes Magic Resist:25 Armour:25

Thanks for Reading my idea, tell me what you think!!