Countermoon Charm

By throwing your material components into the air blocking the view of the moon, you can attempt to force Lycanthropes and other Shapechanging creatures back from their altered forms. The creature must succeed a Charisma saving throw against your spell save DC. On a success, the creature is not forced back into its original form, on a fail the creature(s) is(are) subjected to the spell.

At Higher Levels. When cast using a 4th Level spell slot the affected creatures are solely lycanthropes. When cast using a spell slot of 6th level, the affected creatures include shapechanger creature types and Wildshaped Druids. When using a spell slot of 8th level the affected creatures include polymorphed creatures and dragons.