The Relic Weapons

[Vaer]

New step is 240 but takes a while to do. Customizable stats and an extra tier V materia melded into it as a bonus. (Basically it's like a weapon with 3 V's melded IIRC, which so far is impossible on other weapons since most weapons only have 2 slots)

Depending on your job's lore weapon secondaries the relic will be slightly better than it even when it gets up to 240. Not by much though. Only way to get accuracy on a weapon which helps healers a lot if they don't want to spend money on penta melds or can free up some melds for other stuff like VIT on accessories.

For non min-maxers, doesn't matter too much as the difference is small enough to not be worth the effort most of the time but that's always been the case with relic.