Edit: Since raging storm’s follow-ups are really conditional, I’d rather have BF’s consistent follow-ups and special acceleration over RS’s extra action.
Heavy Blade and keep Raging Storm in the B slot so she can have 3 actions a turn.
Otherwise for this build, she’d like a Stance since she needs more stats on EP.
Gotta recommend Heavy Blade for the consistent Galeforce procs, for sure.
If you’re not running Raging Storm you’re not running L!Edelgard
i know people have said it already but heavy blade + raging storm works better for galeforcing. this sort of build is basically what helps her stand out from other axe armors too.