Magic Shield (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V, S, M (A metal shield)|
|Duration:||Concentration, up to 10 minutes|
You touch a shield you are holding & cause the shield to feel nearly weightless, almost as if it moves on its own. For the duration of the spell, you are granted a +2 bonus to your armor class & can take a special reaction in response to being hit by an attack roll; when you take this reaction, until the start of your next turn, you have an additional +3 bonus to armor class, and you are immune to the effects of magic missile.