The Japanese-themed blade is the ideal weapon for Samurai and Warrior class players. Because it is intelligence-based, the Moonveil Katana is an excellent choice if you don't want to spend all day grinding your strength stat.
The Moonveil Katana is also an excellent weapon to obtain in the early stages of the game. But don't try to find it too soon, because you'll run into a difficult boss that must be defeated before you can claim it. Here is a guide on how to get the cool blade.
To obtain the katana, you must first travel to Caelid, which is located just east of Limgrave. You must specifically locate and enter Gael Tunnel, which is situated on the border of Caelid and Limgrave. It's a cave with a narrow passage and a hole in the middle. In order to find the tunnel, head south from the Rotview Balcony's Site of Grace. Once there, look for the Gael Tunnel's Site of Grace at the bottom of the cliff.
By entering the tunnel's back entrance, you can avoid the enemies in the tunnel and quickly reach the boss area. A room with multiple octopi and a Giant Land Octopus can be found in the tunnel's eastern end. A lootable body with a Cross-Naginata is also waiting to be snagged.
Magma Wyrm Boss
When you get to the boss area, you'll come across the Magma Wyrm, which isn't difficult to defeat but still presents a challenge. You can't move around freely in the boss area because it's a little tight. Since the ground is covered in lava, using Flame Fortification is advised.
Once you defeat the Magma Wyrm, you can finally get the Moonveil Katana!
The stats required to equip the blade is shown below:
The damage of the blade scales with your Intelligence level. Its abilities are also impressive, as you will appear to be a full-fledged samurai while performing them.