One thing I also remember in 1.23 patch, was that Flare had a chance to put a Burn damage over time effect on the targets. How about make Umbral Hearts also have a chance for Fire4 to add a DOT as well as the 3 next spells used under Umbral Hearts dealing 5-10% more damage?

Freeze in 1.23 was also pretty good, had very decent damage, and was our Enmity Dump, and it had like a 90-120sec cooldown, and we didnt had to aim the spell manually.

I was also saddened in ARR that they removed one of our 3 Ancient Spells: Lightning's Burst which did more damage the lower HP the player had. It did an amazing amount of damage if Thundaga procced as well, and it had a whopping 900sec CD
This Low HP / High Damage kinda suits the BLMs style as sometimes we do eat a survivable attack with Manaward to continue DPSing.
It would also be PERFECT for use in O1S or any other raid boss that had like a ability that puts you to like 50HP. And if you had Thundercloud, Burst would guarantee a Critical hit. Low HP + Thundercloud + Long Cooldown = Massive burst damage
So yeaaaaah, please bring back ancient magic Burst