Light of Day is a mace made for one purpose: destroying the undead. It comes from Morrowind, and the Ghosts of the Tribunal Creation places it in the Tribunal armory at Ashfall’s Tear on Solstheim.
How to get it
Complete the three tasks of the Ghosts of the Tribunal quest to open the Tribunal armory room at Ashfall’s Tear (in the Raven Rock region). Light of Day is in one of the display cases, next to Magebane and Skull Crusher.
Enchantment
Deals sun damage to the target – 15 points, and three times as much (45) to undead. The in-game description says 30, but the real value is 15. The catch: if a vampire or undead holds it, it hurts the wielder too.
Stats and handling
16 base damage at a weight of 20, much better than a regular Iron Mace and close to a Daedric Mace. It uses the One-handed skill.
Smithing
Improve it with an 
Iron Ingot and the Arcane Blacksmith perk. No material perk applies.
Strengths and weaknesses
- Strength: 45 sun damage per hit against draugr, skeletons and vampires.
- Strength: cheap iron tempering.
- Weakness: it damages vampire players – and followers like Serana – who wield it.
Tips
- Perfect for Dawnguard hunters and anyone who spends a lot of time in Nordic tombs.
- Don’t give it to Serana.
- According to UESP, the armory items respawn, so it is possible to get more than one copy.
Added by the Ghosts of the Tribunal Creation, part of the Skyrim Anniversary Edition. Details checked against UESP and summarised in our own words.
