You and up to ten willing creatures you can see within range assume a gaseous form for the duration, appearing as wisps of cloud. While in this cloud form, a creature has a flying speed of 300 feet and has resistance to damage from nonmagical weapons. The only actions a creature can take in this form are the Dash action or to revert to its normal form. Reverting takes 1 minute, during which time a creature is incapacitated and can't move. Until the spell ends, a creature can revert to cloud form, which also requires the 1-minute transformation.

If a creature is in cloud form and flying when the effect ends, the creature descends 60 feet per round for 1 minute until it lands, which it does safely. If it can't land after 1 minute, the creature falls the remaining distance.

If this spell is cast at 7th level, the duration increases to 12 hours, the flying speed increases to 400 feet, the casting time becomes 24 seconds, and the time to change form becomes 24 seconds (4 rounds).

If this spell is cast at 8th level, the duration increases to 16hours, the flying speed increases to 500 feet, the casting time becomes 12 seconds, and the time to change form becomes 12 seconds (2 rounds).

If this spell is cast at 9th level, the duration increases to 24 hours, the flying speed increases to 600 feet, the casting time becomes an action, and a creature may change forms as an action or a bonus action.