The Caster Absorbs all live around him/her. All Plants die Instantly evry Creature needs to make an Inteligence Saving throw or take 2d8 Necrotic damage or half the Damage with an Sucsedet saving throw. The Caster then gain´s all the damage as helth (Max 18+8 per Level above 4th). Than the creature get´s one extra hp for every quadratic meter thath is grown by plants (Max 10+8 for every higher level).

At higher Level´s: For evry spell slot above 4th level the spell deals 1d8 more damage and can heal up to 8 Hp more through Creatures and 8 more through plants.