To kill Will-o-the-Wisps in Oblivion (including Oblivion Remastered), you need to use specific types of damage because they are immune to normal attacks and poison. The effective methods include:

• Magic spells : Using spells that deal elemental or magical damage from a distance is very effective since Will-o-Wisps absorb health and magicka upon contact, making ranged magic safer

• Enchanted weapons : Weapons with elemental enchantments (fire, shock, frost, etc.) can harm Will-o-Wisps. This works well for melee or ranged weapons like enchanted swords or bows

• Silver weapons : Silver swords or bows can damage them. Players often use silver weapons because they are accessible and effective

• Daedric weapons : These powerful weapons also work against Will-o-Wisps

• Hand-to-hand combat : You can damage them with your fists only if your Hand-to-Hand skill is Journeyman level 50 or higher

Combat tips:

• Hit the Will-o-Wisp as it approaches and then back away quickly to avoid its health and magicka draining touch attack

• Using the Reflect Spell can reverse their absorption attack, healing you instead of harming you

• Loot the defeated Will-o-Wisp for Glow Dust, a valuable alchemy ingredient used for effects like Reflect Spell

In summary, to kill Will-o-Wisps in Oblivion, avoid normal weapons and instead rely on magic, enchanted, silver, or Daedric weapons, or high-level hand-to- hand combat, while managing their draining attacks carefully