Wall of Jelly

This spell creates a 20x10x3 ft wall of very sticky edible jelly (The jelly has no caloric value). The Jelly is difficult terrain to pass through.  A creature trying to move through the wall must succeed on a Strength saving throw or be restrained by the jelly until the spell ends. A creature restrained by the jelly can use its action to make a Strength check against your spell save DC. On a success, it frees itself.

When the spell ends, the jelly pops out of existence.