|Damage Per Swing:23.9|
|Rate of Fire:1.2|
"A solarium-infused sword, forged by Asra Nox."
Compared to other broadswords, the Solus Katana has a faster combo speed.
The sword's secondary fire is a unique ability that fires out three flaming knife-like projectiles in front of the player at angles of 20 degrees, 30 degrees and 50 degrees below horizontal, mimicking one of Nox's unique attacks. The knives explode upon contact with an enemy or after living for 2.5 seconds. These projectiles have a base power of 15, but require the player to jump to be used effectively: used on the ground, the attack's projectiles will simply hit the floor in front of the player's feet. This however can be used as a trap against melee enemies. The Solus Katana's secondary fire consumes 120 energy on use and incurs a 1.5-second delay before it can be used again. Using this attack in the air will cause the player to stop temporarily, making it a good way to avoid fall damage.
The Solus Katana appears to be made of regular grey steel when inert, but quickly ignites to the orange, solarium-powered glow seen in the image once swung or used to fire knives. The ignited sword gives off a small amount of light. The sword will return to its inert state after a short period of time if no more attacks are used.
When upgraded at a Weapon Upgrade Anvil to tier 6, the Solus Katana's swing damage increases from 23.8625 to 33.4075, and the damage dealt by Kunai Blast's energy kunai increases to 21. Additionally, the Solus Katana's appearance changes to the one shown below.
Apart from the addition of a gold star to the name, no other changes occur as a result of the upgrade.