Ecdysis

This insidious spell accelerates the gradual molting that dragons, like many reptiles, gradually undergo. Ecdydis is only effective against dragohydras, dragons, dragons turtles, dragonets, and the various draconic hybrids. It is an effective against Dragoliches and other Undead forms of those species.

If the target of ecdysis spell makes a constitution saving throw, then the ecdysis spell ends without effect. If the target fails it's constitution saving throw, it begins to rapidly molt. The molting effect causes the target to shed 10% of its scales immediately.  Within 10 minutes, another 10% of the scales are shed, and again after an additional ten minutes passes, another 10% of the target scales are shed. For every 10% of the target scales that are shed, the target effectively receives a -1 penalty to its armor class. As a result, after 30 minutes, the target suffers a -3 penalty to its armor class.

Unlike the rapid pace at which molting occurs, new scales regrow at a rate of only 10% of the surface area per tenday.  As a result, it takes a full 30 days before the target of the spell reverts to its normal armor class.

The degenerative effects of the spell can be halted, but not reversed, by means of a dispel magic, remove curse, or cure disease spell. Only a heal, limited wish, or wish spell can speed recovery from the effects of an ecdysis spell.

Note that scales shed as a result of the spell rapidly Decay into dust and are useless as material components for other spells.

When cast, the druid produces their holy symbol or spell focus and the scales of a reptile of any type.