Skills for Valter

We'd probably see nothing but Raijinto's on every single existing sword user.

Well since you went for Life and Death on Valter you should consider giving him Desperation.

Here's my Valter, the all of his skills are used for the high sp cost and Renewal also for the -4 hp after combat.

And usually inherited skills are 1.5x the usual coast so I assume 600sp.

Oh man Legendary Weapons SI Blazing Durandal from B Roy op op op.
Geirskogul jummy.

But back to Valter there are many great ways to make him insane
Life and Death is good fury is a option but is a thing what you more prefer.
Renewall/Desperation/Vantage hell Wrath is actually insane with him.. Need more Wrath fodder q.q.
Panic Ploy is just to good leave it.

L&D+Desperation+Galeforce works pretty well. Luna is great if you don’t have/want galeforce.