Aura of the Sun

You surround yourself with a 10-foot emanation of golden light that moves with you. Its light warms the body and drives away shadow. Saving throws against effects that deal cold or necrotic damage are made with advantage while within the aura, and creatures that take cold or necrotic damage take 5 fewer points.

Areas of magical darkness created by 3rd-level or lower effects are dispelled upon entering the aura. Checks made to hide within the aura are made with disadvantage, and the location of invisible creatures can be determined automatically. Undead creatures that start their turn within the aura take 2d6 points of radiant damage.