I try to hold on to FoH until I either see a group of enemies or I see a dangerous roaming super. It's really simple and noob friendly. But its uses are simple as well. I can only use FoH to kill or damage enemies in a radius around my character. It's not the best super for mobility (I guess you can use it that way if you're high up enough or have Death from Above). I honestly don't think it would be fair if FoH didn't kill in one hit though. Im putting my guardian in close range of enemies so if they survive then I'm in a lot of trouble. Very rarely do I use a super in anger or panic. Although I'll be honest and say it happens on occasion. But any super can be used in panic tbh... (looks over at nova bomb)