Homebrew
5-level Necromancy
You summon a massive sickly yellow spectral skull 60 feet in the air and it flies downwards towards where its turns into a massive unholy mist which damages living creatures while it heals all undead (apart from yourself) with 40-feet radius.
Each non-undead creature must make a Constitution saving throw or suffer 3d8 necrotic damage and creature cannot regain hit points until the end of your next turn. Undead creatures instead regain 6d8 hit points.
AN: Basically AoE Death Coil. Also might need a better name.
AN2: Inspired by Scarlet Dawn (TCM24 p133)
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