Conjured Barrier

Summon a small semi-translucent barrier of force, the barrier can be 3 or 6 ft tall and can be 10 or 20 ft long (10ft long if 6ft high and 20ft long if 3ft high.) The barrier can be broken by making a strength Check against the casters spell DC, or by attacking it with the barrier having 15 hp and an AC equal to half of the casters spell DC. 

The barrier can be moved up to 30ft and changed as a bonus action, it cannot occupy the same space as a living creature when the movement is completed and is intangible while moving.