Argent Defense

Three magical shields form and rotate around your body, jumping in front of attacks that aim to harm you. You gain +4 to your AC for the next 3 attack rolls against you. Once the 3 attacks have been resolved, this spell ends.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you instead gain +5 to your AC. 
Additionally, 2 additional attacks can be blocked for each slot above 1st.