The main nerf is that the torps are now slow . The guns are somewhat improved but still quite poor . Isokaze also got the slow torps nerf at t 4 . <| sep |> There ' s also the matter that a Bahamut weapon is a more efficient source of Normal Modifier than a Levi Dagger is for Magna modifier , so the Levi grid gets its secondary modifier a little more easily . It shouldn ' t make that big of a difference though . Final difference between the two should be singledigit percent . The Chev Axe grid falling behind by 20 % damage seems wrong . EDIT Some quick modifier mathMainhand GW weapon 6 Levi Daggers Genbu Axe Baha Cosmos Dagger 1 2 6 0 . 18 1 0 . 3 0 . 15 0 . 2 3 . 16 1 . 65 5 . 214 Mainhand GW weapon 5 Chev Axes Genbu Axe 2 Levi Dagger Cosmos Axe 1 2 . 2 5 0 . 18 0 . 15 0 . 2 1 2 0 . 18 3 . 75 1 . 36 5 . 1 So for equivalent Chev AxeLevi Dagger grids , the Levi Dagger grid ends up with a slightly higher modifier due to having better multiplier diversity , since it can get a lot of Normal multiplier efficiently from having a Baha weaponwhile to get Magna modifier , Chev Axe grids can only run Levi daggers . This will be offset by the higher base atk of the axes in the Chev Axe grid . Addition of unknowns should not drastically change the outcome since they should affect both grids similarly . Fenrir Axes will further lower the Chev Axe grid ' s damage , but the tradeoff for the big DA is very much worth it . EDIT 2 With an 80 % Varuna , the modifier for the Chev Axe grid drops to 4 . 42 , which is a much more significant gap .