Create/Collapse Elemental Portal

You create a temporary portal 30 feet in diameter that leads to a location in an elemental plane. You can specify a target destination in general terms, and the portal takes you to that destination. The portal lasts for 1 hour and allows creatures or objects to enter the portal or emerge from it at the GM's discretion. Creatures that start their turn within 60 feet of the portal's center on either side of the portal must succeed on a Constitution saving throw or receive a condition depending on the table below, caused by the swirling mass of the corresponding elementsurrounding the portal. A creature makes the saaving throw again at the start of each of its turns to end the condition if it remains in the area.

As a bonus action, you can end the spell and collapse this, or another, temporary elemental portal, causing all creatures within 60 feet of the portal's center to make a Dexterity saving throw or take 12d6 damage of the associated damage type listed on the table below on a failure, and half as much on a success. The portal evaporates on its own without incident once the spell ends.