[Grandpa]

I honestly think the biggest problem with it is that it does ice damage on hit as well, otherwise it would be comparable to the spine leash. I've seen builds with just gross amounts of ice stacking (100+) just for the Sogensara's on hit damage is as strong as possible, alongside the rest of its high as hell scaling. I genuinely think it's one of the strongest, if not THE strongest melee weapon in the game right now. You can accomplish far too much with it, and when you consider that the yukijin (an ice katana that does ice damage on hit) already exists, this is just a straight upgrade and removes any point in using the Yukijin.