Great Magic Shield

Great Magic Shield is a Sorcery (Dark Souls III) in Dark Souls III.

{{Description
 * First paragraph = Sorcery which improves upon Magic Shield. Greatly reinforces left shield with magic.
 * Second paragraph = Only sorcerer-swordsmen with special duties are permitted the use of this spell, which temporarily grants even the smallest of shields fortitude more akin to that of a greatshield.

Availability
Dropped by a Corpse Grub in a cell found in the Irithyll Dungeon. After you kill the first Irithyll Jailer, drop down one floor and open the door to the creature.

Effect
Greatly reinforces left shield with magic.