Ash of War: Lightning Slash
Game: Elden Ring
This Ash of War grants an armament the Lightning affinity and the following skill: “Lightning Slash: Call down a bolt of lightning into armament, then swing it down to create an explosive shock. The armament retains the lightning enchantment for a while.” Usable on swords, axes, and hammers.
Where to Find the Lightning Slash
Drops from a loot beetle in a soldier camp in Altus Plateau. See part 3 of walkthrough for details on acquiring.