Elden Ring – How to Get Assassin’s Cerulean Dagger Talisman Location / Critical hits restore FP December 1, 2022 wd.gaming All Category ELDEN RING Talisman Assassin’s Cerulean Dagger is a talisman than can restore 15 FP if you do Critical attacks to the enemy. This talisman dropped by the Black Knife Assassin boss found in Black Knife Catacombs in the northeast of the Liurnia of the Lakes region.