You're confusing force in balance with sever force.
FiB= Death Field (aoe that's targeted with a mouse and can be used in any direction)
Sever Force = creeping terror (targeted instant dot that roots)
I actually knew exactly what I was talking anout. Obviously FiB and DF can miss what I meant was is a Sage being chased by me will not always land a SF if he doesnt at least pivot himself for a closer scope at me. Yes its possible to hit a target behind you because ive done it with CT as long as i was close enough to them and they were targeted