Dominion Blessing

Ethereal energy radiates from you in an aura with a 10-foot radius. The aura moves with you, centered on you. Until the end of your next turn, each nonhostile creature in the aura (including you) has resistance to necrotic damage, gains a bonus to saving throws equal to your spellcasting modifier, and they gain ac equal to half your proficiency bonus rounded down. In addition at the start of your turn that this spell is active, each nonhostile creature in the aura (including you) regain 2d6 + your spellcasting modifier hit points.