Sanctuary

(a small silver mirror)
Until spell end, any creature who targets the
warded creature with an attack or a harmful
spell must first make a Wisdom saving throw.
On a failed save, the creature must choose a
new target or lose the attack or spell. This spell
doesn't protect the warded creature from area
effects, such as the explosion of a fireball.
If the warded creature makes an attack or casts
a spell that affects an enemy creature, this
spell ends.