Lady Melisande
Lady Melisande
Lady Melisande Boss can be found in the Blighted Grove Dungeon
Tactics
She is vulnerable to the Fey Slayer type weapons, currently of which the only ones available are Pixie Swatter, Ironwood Composite Bow, Wind of Corruption, Fallen Mystic's Spellbook and Defiler of Virtue, or a custom weapon can be crafted and imbued with this slayer property using Fey Wings.
She is vulnerable to physical and fire damage and she is not an easy fight. Lady Melisande will randomly spawn Satyrs to defend herself, they will use peacemaking on you. Other than that she's pretty standard. Every 3 or 4 Lady Melisande's, an exceptionally tough one will spawn that hits harder and spawns more Satyrs than usual.