The coil is not awful. Challenging yes. If you make a build that generates your health or stacks damage on enemies, you will flush through enemies. For example: wishful ignorance gauntlets from the Titan will give you health back with the aspect of Banner of war. On top of that if you build your melee power up to 200 and your health at at least 100 you can do some serious damage in the coil Many other builds you need to experiment with. There are some good ones out there like the Hunter solar sub class equipped with blade barrage super, and gunpowder gamble aspect using the shards of Galanor gauntlets. Every time you use your super on a boss or a mini boss, majority of the knives will hit the enemy and you will get almost half of your super back instantly. If your hunter character is built properly, you will use that super several times, depending on your build