elegant chains

Imbued with the powers of Argus and Argentum, you may now cast elegant chains at will. This spell requires 2 casters to have any effect. When fired, ethereal chains made of alternating gold and sterling silver links are summoned from your fingertips and blast towards a target, wrapping around their limbs and body. The target becomes immobilized and can make a dc 99 strength check to break free of the chains. If 2 casters have their chains wrapped around a target, after 10 seconds of concentration, the target is banished to [redacted]