There's always blessing/Malice. Or if you don't have a Titan you can cover that with tether for extra damage. I guess people will just have to get used to not killing bosses in one or two cycles anymore. I saw it coming though. It happened with Atheon when they stopped the teleportation strategy. it happened with Crota when they made his standing timer set instead of occasionally random. It happened with Skolas when they removed elemental burns.