I have a few SMN nerfs in mind tbh. Remove the Tri-Disaster reset. Remove Rouse. Nerf the potency on Ruin II back to 80. Make Bahamut only proc on spells. Half of those things fix some of the problems with SMN atm too.
For BLM the only thing you can really buff is Fire IV. Lower it and Blizzard IV's GCD to 2.5, add 10-20 potency, and see how the numbers play out. Any buffs anywhere else benefit the ARR rotation more, which we're trying to discourage atm.
