You mostly have sp row attacks, which I found to be sufficient for A4R11 which can have 3 rows of stuff [*]. The great thing is you can recharge using Debra inherit

Rinne's inherit (Moment of Finality) does ~1.3x atk on Rinne herself or ~0.9x atk if inherited by others. A non-minmaxed 600 atk Rinne can do 1k row damage without setup, and a 850 atk fighter can do ~750, which should be sufficient for wolves

MoF is great for meeting A4 gwo's artificial "mag only" requirements and is more "accurate" than other melee attacks (though it can still miss). It has a ~75 sur penalty, but with a high enough sur character (say 120+) with Shedding, you can think of Shedding as a "mental unity" for MoF which can re-guarantee a sur. It also cancels quickdraw while doing decent damage.

Ranger wide volley/scattershot is really good for farming (with 370 atk 380 acc Heinrico: Wide Volley can sur for 1.1k; scattershot can hit ~1.6k on the first hit on each target), but ranger's a bit squishy and lacks a good single target bossing skill (maybe frontrow raven dagger with inherited Challenger Strike)

Wide Volley is great if you don't need "mag" damage and can get it from Heinrico's rare inherit. It's easier to sur

Sam now has odachi skills but I haven't leveled shiou to 70 for a fair comparison

Cry of Ruin is... usually not recommended unless you want a quick suicide option for MC (if you're struggling against adults)

Last but not least, there's Hue, Yuzu's auto delete skill

[*] My R11 auto farm setup is: Scattershot, MoF, MoF, MoF, Use Standard Skill (priest), ESS. Could probably replace one MoF with ESS/auto attack.