This page of the guide to Elden Ring contains info on where to find the Moonveil katana.
The Moonveil katana is one of the best katanas in the game, dealing very high physical and magical damage. It's one of the best weapons available in Elden Ring. Getting it will make enemies vulnerable to magic much more manageable. The weapon scales with Strength, Dexterity and Intelligence. It also comes with a great unique attack in the form of a quick slash and a wave of magical light.
How to reach?
Moonveil can be found in Gael Tunnel. You can reach it easily from the north of Caelid. The dungeon is located near the Rotview Balcony site of grace. You must head south, carefully, in order not to fall.
A bunch of enemies await you inside. The location is straightforward and impossible to get lost in. As you keep moving deeper into the tunnel you'll eventually find a large gate leading to the Magma Wyrm boss.
Defeating this dangerous opponent rewards you with Moonveil. It's a guaranteed drop after killing the boss. No special or additional activities are required.
What stats does Moonveil require?
Moonveil is a magical katana that scales the most with Intelligence. It's damage also depends on Strength and Dexterity, to a lesser extent.
Using Moonveil effectively requires the following stats:
- Strength - 12
- Dexterity -18
- Intelligence - 23