If those numbers are legit she is hard busted. Thats like 4k damage with 600 AP and Electrocute / Dark Harvest. 1540 Base damage with 3.2 total AP ratio. Nasty.
For reference Leblancs Single target Numbers are 1475 base + 3.6 AP if she uses E>W>Q>R>Eroot which is her highest burst combo.
Easy one shot potential, all she has to do is hit root. And then she also has mad zoning / peeling complete with mad utility from her passive... imagine trying to dive a 4 item Tristana and you're not sure which one is Trist and which is Neeko. Gross.