Fire and GR is the usual, but i usually stay with fire since im too lazy to change lmao
Buuut when you are mobbing, GR works well. But if there is a mudman in your mob, i'd recommand
Switching to fire armor.
Also, dual meg is what i use, but one bry one meg combo works well too.
If not, celebs are good alternatives as well.
Shields are alice and gtb, alice for mobbing and gtb if there is the valk thingies in mob.
I never used bathory nor garm in dg so idk how that works lol but
fire armor works fine in my opinion

as for stats, str must be less than 69 or 70
The rest, just have about 20k+ hp and such such. While using heat to kill the mob,
Also have the kick combo thing on too xD the killing will go faster with whirlwind kick.. Its what i do personally!
Pirate dagger is a must. If you dont have fenrir, dl sleips work too, but i'd say
Odin till you get sg sqi