Blade Barrier
You create a wall of whirling blades made of magical energy. The wall appears within range and lasts for the duration. You make a straight wall up to 100 feet long, 20 feet high, and 5 feet thick, or a ringed wall up to 60 feet in diameter, 20 feet high, and 5 feet thick. The wall provides Three-Quarters Cover, and its space is Difficult Terrain. Any creature in the wall's space makes a Dexterity saving throw, taking 6d10 Force damage on a failed save or half as much damage on a successful one. A creature also makes that save if it enters the wall's space or ends it turn there. A creature makes that save only once per turn.
Blade Barrier 5e 2024 vs. 2014 edition differences
The 2024 version specifies "up to" 10 minutes duration, clarifies that creatures make a Dexterity save when entering or ending their turn in the wall, and that they only make one save per turn. Damage is Force in 2024, whereas it was Slashing in 2014. The 2014 version does not specify saving when entering or ending turn, nor limit saves to once per turn.