The sorcery wielded by Fia, the Deathbed Companion, involves creating a deathly mist in front of the caster.

This mist inflicts Death blight upon those who enter it.

The sorcery can be cast while in motion, and charging it enhances the range of the mist.

Developed specifically to counter the Roundtable Hold, it proves effective only against the Tarnished.

To acquire this magic, you need to engage in Fear's side quests(Fia, Deathbed Companion - ANY4GAME Elden Ring Raiders).

The specific process to obtain this sorcery is detailed in Fear's quests, and it involves defeating five Fear heroes.

Follow the questline to obtain the sorcery after completing the necessary tasks.