Construct of Miryr

A strange collection of glittering metallic shards that seem to gravitate around each other. When touched, the shards contract together forming a rod with multiple circles floating around it. These circles contain several bits and cuts alike those of a key.
The constructs are created by Miryr as ways to access one of the Great Vaults of Miryr. A construct allows access to the matching vault from any place. All the possessor of the construct must do is hold out the construct when in its rod-like form and envision a gateway to the vault. Doing so will cause a rift made of golden light to appear. The rift widens into the shape of a great gate and manifests two golden-decorated quarts pillars on either side before clearing up and allowing access to the vault. The construct also knows a different configuration, one that looks akin to a railgun. Like this, it can be used to shoot a creature with a golden ray. Upon making contact with the creature, it is engulfed in the golden light and transported to the vault the construct belongs to. Only a servant of one of the great vaults is able to set the configuration of the construct.