Barrier

A transparent barrier of force springs into existence at a point within range. The barrier is two-dimensional and can be no more than 20 feet on a side. The barrier acts like a solid barrier, blocking anything that attempts to pass through it as any other wall would, including creatures, attacks, and appropriate spells (things such as Magic Missile and Cloudkill but not Mind Spike or Misty Step). The barrier can be attacked, and has an armour class equal to your spell save DC, and hit points equal to ten times the level of spell slot used to cast this spell. The barrier is immune to poison and psychic damage, and makes all saving throws using your spellcasting ability modifier, regardless of the type of saving throw. A Disintegrate spell destroys the barrier instantly.