Dimension Shift

You and up to eight willing creatures who link hands in a circle are transported to a different Dimension. When you cast this spell you travel to either a random Dimension or to one you have been to before. Casting of the spell in this way does not require concentration and it's duration is instantaneous.

Alternatively you can conjure a portal linking an unoccupied space you can see within range to a precise location on a different dimension. The portal is a circular opening, which you can make 5 to 20 feet in diameter. You can orient the portal in any direction you choose. The portal lasts for the duration. The portal has a front and a back on each dimension where it appears. Travel through the portal is possible only by moving through its front. Anything that does so is instantly transported to the other plane, appearing in the unoccupied space nearest to the portal. Casting of the spell in this way does requires concentration and it's duration is as 1 minute.