Undead Lore

Your dealings with death have expanded your knowledge of the macabre. You know the dead and what they are capable of. You become trained in Undead Lore, a special lore skill that can be used to Recall Knowledge regarding undead creatures, haunts, and effects caused by undead creatures or other necromancers, but that can't be used to Recall Knowledge of other topics. At 3rd level, you become an expert in Undead Lore; at 7th level, you become a master in Undead Lore; and at 15th level, you become legendary in Undead Lore.