Fia, Deathbed Companion

Her embrace will give you a special consumable that can increase poise called the Baldachin's Blessing, at the cost of a debuff that slightly decreases your maximum HP.

You can ostensibly come back for more if you happen to run out of this consumable.

Locations: Roundtable Hold

                 Deeproot Depths

Key Items: Weathered Dagger

                  Deathbed Dress

                  Deathbed Smalls

                  Baldachin's Blessing

                  Radiant Baldachin's Blessing

                  Cursemark of Death

                  Mending Rune of the Death-Prince

Related Questlines: Fia, Deathbed Companion questline

                                The Age of the Duskborn

                                D, Hunter of the Dead questline

                                Ranni the Witch