Theodore's Magic Ward

Create's a magic sigil above your head. This sigil lowers your AC by three, but gives you advantage on saving throws for spells. As a reaction, if a creature within sixty feet of you that you can see casts a spell at you, you can raise your AC by five until the spell hits. In addition, if the spell is 2nd level or lower, you can throw it right back at them, no-matter your level.