The focus gain on backstab and parry are tremendous. Blink is a great support rune for getting backstabs. Electric enchantment makes sense until you can find the lightning facet, though the focus gain is so high it would just allow for less maintenance. Piercing dodge feels useless. It doesn’t do all that much damage compared to regular attacks. I don’t get why it’s 100 focus. Lightning slam is cool but has a lot of recovery, so is a challenge to use in boss fights without taking damage. It feels like this weapon gains so much focus, but doesn’t have any good focus spenders. So I wonder if it’s supposed to be powerful on its own, or a support weapon for something else that actually has strong rune attacks. The stat requirements push you out of the obvious choice of supporting wands unless you want to game the system and find a lower level wand. There are no 2H weapons for dex int. The bows aren’t really that impressive, though they have decent runes at least. Also wondering the intent behind the sprint attack. It’s a single attack with lots of recovery. It’s almost always better to blink and do the neutral attacks.
With all that focus gain on parry, you don’t really have a decent rune attack to use right after since bosses will hit you after lightning slam. It’s one redeeming quality is the low focus cost for a slam.
Midnight Blade feels like the star of dex int, yet it seems like a better support weapon for something else, but dex int has so few weapon options for that something else compared to other stat combos.