Crown of Gilded Cages

A golden crown forms on your head, with 7 glowing corns orbiting it. You can use a bonus action to fire one or more coins at a targeted creature within 120ft of you. When you do so, make a ranged spell attack. On a hit, an immobile golden prison forms around the target. You can choose the form of the prison, so long as it can fit the targeted creature/object.

Whether the coin hits the target or not, it is consumed. If you have 4 or more coins remaining, enemies within a 30ft radius are awed by your crown, and have a disadvantage on Charisma saving throws when you are in direct sight. If you have 3 or less coins, you gain a temporary +2 to your next spell attack roll. 

A prison in the shape of a cage can be up to 10 feet on a side and is made from 1/2-inch diameter golden bars spaced 1/2 inch apart, which blocks any spells cast into or out of the area. If the creature is larger than the cage, you can use up to 3 coins on a single target, each coin adding up to 10ft per side of the prison.

A creature inside the cage can't leave it by nonmagical means. If the creature tries to use teleportation or interplanar travel to leave the cage, it must first make a Charisma saving throw. On a success, the creature can use that magic to exit the cage and appears next to the cage. On a failure, the creature can't exit the cage and wastes the use of the spell or effect. The cage also extends into the Ethereal Plane, blocking ethereal travel.