Web

Conjure sticky webbing in a 20-ft. cube centered within range. The area is difficult terrain and lightly obscured. A creature that enters for the first time on a turn or starts there must make a DEX save or become restrained. A restrained creature can use an action to make a STR check against your power DC, ending the restraint on itself on a success. Burning a 5-ft. cube removes it and deals 2d4 fire damage to creatures in that cube.