This Ritual increases the duration of any Extendable Enchantment Ritual Magic in the Targeted batch to a permanent duration. Permanent items are indestructible by normal means, including Battle Magic spells and destructive Traps.
This Ritual may be cast over a Boost Duration Ritual as described on that scroll. The Boost Duration is a Ritual for the purposes of calculating the difficulty of this Ritual, but it is replaced by the Permanent Duration for the purposes of number of Rituals upon an item.
Permanent Duration automatically grants a Spirit Lock Ritual when cast. This additional Spirit Lock does not count as a separate Ritual on the item, but is inherent in the Permanent Duration Ritual itself and may not be removed without also removing the Permanent Duration Ritual. If the Target of this Spirit Lock is not specified at the time of casting, it will attach itself to the first valid Target to touch the item after the Ritual is complete.