rpg—rules

spell

Shield

Level
1
Casting time
Reaction, which you take when you are hit by an attack roll or targeted by the Magic Missile spell
Range
Self
Duration
1 round
Components
V, S

An imperceptible barrier of magical force protects you. Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from Magic Missile.

Source · SRD 5.2.1 · page 161