Cover Ward

Creates a translucent 1-inch thick and 10-feet by 10-feet vertical wall of arcane energy on an empty space you can see within range large enough to accodomate it. The wall remains for the duration or until you loose concentration. The wall protects anyone standing behind it from ranged attacks, providing total cover from any projectiles, magical or otherwise.

The wall has an AC of 20 and hitpoints equal to ten times your primary spellcasting ability modifier. It is resistant to force damage and immune to the magic missile spell.