As an action, you are full of life-preserving energy. You have resistance to necrotic damage and your maximum health can’t be reduced for the duration.
You can target one additional willing creature that you can touch or see within 10 meters for each additional mana expended. The creatures must be within 5 meters of each other when you target them.
Immunity. You can expend 2 additional mana so you are immune to necrotic damage.
As a reaction, which you use when you take necrotic damage, you gain resistance to necrotic damage until the start of your next turn.
You can expend 1 additional mana to trigger the spell when a creature that you can touch or see within 10 meters takes necrotic damage. The creature gains the resistance instead.