Preservation Ward

are purchasable in packs of 10x from the Zen Market. A single  may also be the result of opening a, a , or a  which can be purchaded for 11. During the Winter Festival it is also a random drop from a or.

The can be used when upgrading Enchantment to prevent the loss of reagents, should the upgrade process fail. In this case, the player loses the instead of the reagents. If the upgrade process succeeds, the will not be consumed.

Also see:

Schutz der Bewahrung Страхующий катализатор