Spirit Guardians

When you cast this spell, you can designate any
number of creatures you can see to be unaffected
by it. An affected creature’s speed is halved in the
area, and when the creature enters the area for
the first time on a turn or starts its turn there, it
must make a Wisdom saving throw. On a failed
save, the creature takes 3d8 radiant damage
(if you are good or neutral) or 3d8 necrotic damage
(if you are evil). On a successful save, the creature
takes half as much damage.