Updraft/Downdraft

You call forth a forceful wind to billow in a vertical cylinder with a 30-foot radius and a length of 150 feet, centered on a point within range of your choice. You may choose whether the wind blows up (updraft) or downwards (downdraft), and its effects differ accordingly

Updraft: The wind billows upwards, any flying or levitating creature that moves through this space is automatically pushed to the top of the updraft. If this push would cause it to hit a solid surface, such as the roof of a cave or building, it takes damage as if it were falling into that surface. Any creature that jumps in this space has their jump height doubled, and any creature that falls into this space has their fall damage halved. Additionally, any ranged attack, breath weapon, or gas that passes through this wind is pushed upwards, and cannot hit a grounded target. For a flying target, attack rolls for ranged attacks are made with disadvantage. (Heavier projectiles, such as boulders, are unaffected by this). Any large or smaller creature with a flying speed that starts its turn in or enters this space must make a Constitution saving throw or be flung upwards to the top of the wind, as if it were flying.

Downdraft: The wind billows downwards, any flying creature that moves through this space is automatically pushed to the bottom of the wind at high speeds. Any fall damage (including that of flying creatures pushed down by the wind) taken within this wind is doubled. Any creature that jumps in this space also has their jump height halved. Additionally, any ranged attack, breath weapon, or gas that passes through this wind is pushed downwards, and cannot hit a flying target. For a grounded target, attack rolls are made with disadvantage for ranged attacks. The area within this wind is treated as difficult terrain, and any medium or smaller creature that starts its turn in or enters this space must make a Constitution saving throw or fall prone.

As an action on your turn, you may change the wind from an updraft to a downdraft, or vice versa.