Dark Souls 2 Hitbox Fix Mod <1080p HD>
Unlike other Souls games, your invincibility frames (i-frames) during a roll are tied to the Agility stat, which is raised by leveling Adaptability (ADP) and Attunement . If you have low Agility, you can be hit even if your character appears to be mid-roll.
: This mod explicitly mentions fixing incorrect hitboxes on weapons like the Forlorn Greatsword and Syan's Halberd . dark souls 2 hitbox fix mod