Colette is supposed to sell this spell after Restoration Ritual Spell has been completed, but it may not be available for sale.This bug is fixed by version 4.1.3 of the Unofficial Skyrim Patch.The circle's Turn Undead duration is 30 seconds, and the healing duration is only 2 seconds, while the intended duration for both is 60 seconds.However, you can cast it along with a Circle of Protection, and have both running at once. You can only have at most one Guardian Circle active at a time.It will however replenish magicka if you have the Atronach perk as it counts as being 'hit' by a spell from an outside source. Also, unlike standard healing spells, it will not heal stamina, even with the Respite perk. The circle will not heal your allies or anyone else, only the caster.However, you will not receive healing unless you are in the circle. There is no requirement that the caster remain within the circle to keep it going. The circle does not move with the caster, but stays where it is when cast for 60 seconds.The fear duration is independent from the circle's duration, i.e.: If an undead creature enters the circle after 29 seconds, it will still flee for a full 30 seconds, even though the circle itself has expired.Restoration Dual Casting, increases the turn undead effect duration to over 2 minutes.Necromage, increases duration of the turn undead effect to 90 seconds and affects undead up to level 43 (requires USKP).Guardian Circle is a master level Restoration spell, which will cause any undead up to level 35 who enter the circle to flee from combat for 30 seconds, and also heal the caster while inside the circle. Caster heals 20 health per second inside it.

Undead up to level 35 entering the circle will flee. Purchase from (after Restoration Ritual Spell)

Download master restoration spells