Conjure Shield

You conjure a translucent shield of force which appears in a free hand. You are only proficient with this shield if you are proficient with shields. The shield is similar in size to regular shields and provides the same +2 bonus to AC. The shield disappears if it leaves your hand, however while the spell persists, you can use a bonus action to cause it to reappear in a free hand of yours again.

At Higher Levels. If you cast the spell using a spell slot of 2nd or 3rd level then the shield is considered to be a +1 shield. If you cast this spell using a spell slot of 4th or 5th level then the shield is considered to be a +2 shield. If you cast the spell using a slot of 6th level or higher then the shield is considered to be a +3 shield.