You conjure a shimmering arcane portal linked to a pre-designated destination. The portal opens a stable one-way gate to a fixed location you've previously bound during a long rest (such as major cities, guild halls, or arcane sanctums).   When you finish casting this spell, a swirling disc of energy appears within range. Up to eight willing creatures can step through, arriving within 10 feet of the bound destination. The portal remains open for 1 minute or until the maximum number of creatures pass through.   Once a portal has been cast to a bound location, you cannot change the destination until you complete another long rest and perform a 1-minute ritual at the new site. You may only have one bound location at a time.   This spell cannot be used to travel between planes unless the bound destination is on the same plane.