Little Glossary

Zanken:The most basic form of technique in the universe in Ryujin no Sekai.A simple slash wave.Of course,stronger fighters created variants.

Muramasa Spells:Magic spells created by a demon swordsmith,who also happened to be one the world's first warlock.There are many,many types of spells for each element
in-universe(fire,water/ice,earth,wind,metal,thunder,light,darkness) and combinations between elements.All magic requires a certain casting time(no matter how short it may be,if the user is skilled),which is longer the more powerful the spell is.