Ten of them are received during the quest. J'zargo's Flame Cloak Scrolls must be used in melee range, and are especially effective against the undead. Each lasts for 30 seconds and kills the undead almost instantly.
Furthermore, due to the potency of these scrolls, undead explode and damage everyone nearby after dying, including the Dragonborn.
- Be cautious when using these scrolls. The explosion damage from the undead may provoke an attack from any followers. A suggestion is to have them wait at a distance, until done.
- Walking within melee range of multiple undead may immediately kill the Dragonborn due to multiple explosions.
- Simply being surrounded by fire from this spell will also damage any followers nearby, and most likely will provoke an attack. Again, have any followers wait behind until you are done.
- If given to a follower, they may use it and hurt you if you get too close.
- You can use the Become Ethereal shout to become impervious to the explosions.
- You can sell the scrolls, wait a little, and they will reappear in your inventory. Unsure if this is a bug or not.