Sitting on 260+ Mithril myself, but saving it for the SSBfest. I'd consider throwing it on the FF2 Banner for synergy...
Except FF2 Events don't really exist after this one (and of course, I realize after I say this, when the next batch of confirmed events end, they'll announce a Guy event, and I shoot myself in the foot) and I'm mostly done with the Elite Content (heck, I'd be done if Orbfest didn't pop up!)...if not being straight up done already, honestly can't remember, too lazy to check. Leon's Armor would be nice as would Maria's Bow if I wanted Mage meta, but Basch's Shield is better for the latter (outside of Leon's earlier MC2 access) seeing as FF12 stuff DOES exist and there are other opportunities for MT Magic boosts on more prevalent characters...
...now watch as I get Maria's Bow via a 100 Gem Pull anyway...and of course by saying that, I just jinxed it! yay superstition!
Anyway, seems someone crafted Neo-Bahamut. 18x damage over 3 hits. Considering Bahamut is I believe 15x damage over 3 hits, that's kind of appropriate. Legitimate upgrade from everything else in the moveset by a kind of notable amount (only 20% damage, but to be fair, Bahamut is really strong as is), and not embarrassing for it's difficulty like Ultima was.
Meltdown is the next one, another Black Magic, and while I'd be all "oh cool, maybe they'll make it based off FF8 and thus Mental/Armor Breakdown off high damage!"...it's abyss boss is Kaiser Dragon...which is an FF6 boss...yay big recoil damage move incoming -_-