Ancestors March

You call upon your ancestors for assistance in battle. Their spirits fight alongside you to protect you from harm.

When you cast this spell, you can designate any number of creatures you can see to be unaffected by it. When the creature enters the area for the first time on a turn or starts its turn there, it must make a strength saving throw. On a failed save, the creature takes 3d8 radiant damage. On a successful save, the creature takes half as much damage.