Soldier III Blade
Tears of the Kingdom
The weapon is formed by fusing a variety of two-handed swords with a Soldier Construct III Horn. A common fuse variety is with a Strong Zonaite Longsword and a Soldier Construct III Horn. This weapon has a power of 33, but the actual strength of a Soldier III Blade will be dependent on what items are fused together.
In addition to fusing these manually, they can also be found in treasure chests located in Lomei Depths Labyrinth, Lomei Sky Labyrinth, North Lomei Depths Labyrinth, South Lomei Depths Labyrinth, and the Wind Temple. The actual tier of the weapon will depend on your World Level.