It depends on how much you can handle your information inflow. Fairy auto seems impervious to lag, and often much faster then you can blink, and she will not get interrupted because her AI controls her cast rate vs movement rate.
Wisper dawn is 15y radius so it was made with the fact that if you are even remotely in the range , they will probably get it. Sure timing is terrible, but it's really the idea of whether a sch can divide up their time perfectly
Focus heal is a hard factor to control, as rarely is there a focus healing aspect that forces a both a sch and a fairy to heal the same target at the same time. because Sch have lustre.
