Necrodancer
Ancient beyond measure
It's sheer stubbornness to insist on a flawed design, limiting a staff to only 6 enchantments and two augment slots, when wielding two weapons grants you 8 enchantments and 4 augment slots. Anyone who knows how to add knows it's a failed idea, but they refuse to admit it, and until they do, staves are going to be disappointing.
But look, I've already given up on that. They're capable of nerfing scepters instead of making staves decent. They already made Dino (crafted) Orbs subpar by preventing you from adding LGS enchantments to them, and Lamordia Crafting doesn't even have an orb.
The only practical advantage for staves is they're cheaper to craft in terms of materials if you're using IoD or the new lamordia stuff. That's it, can't think of anything else.