A true hero kills with his eyes

You know, it always made me wonder when your Servants shot beams and shit, especially from the back of the line, they need to take care to not hit the Servants in front of them lol.

Farran said:

You know, it always made me wonder when your Servants shot beams and shit, especially from the back of the line, they need to take care to not hit the Servants in front of them lol.

There's a simple, yet cool solution to solve that.
https://youtu.be/Wm1ff1TVjMQ?t=16s