Giving BLM utility would violate the very core point of the job. BLM will benefit much more from buffs to underperforming aspects of the job and QoL improvements than it will from giving it the same generic "press X to buff raid" utility people seem to love, and flat potency increases are boring. Improve Umbral Hearts, extend AF/UI duration by a second, and at this point it's worth just making enochian a trait rather than a buff considering it's borderline impossible to drop.