Demonic Absolution

Select a creature which you can see within 120 ft. of you, that creature must make a wisdom saving throw against your spell save dc. On a failed save, the creature is turned into a demonic beast. Once transformed, use a bonus action to select another creature within 120 ft. of you to apply a hunter's mark to which the beast will target. The Hunter's Mark requires concentration by the caster to remain active and can be moved to a new target by the caster using a bonus action. Once concentration ends hunter's mark can no longer be applied. If no Hunter's Mark is present, the demonic beast will attack the next closest creature to it. Hunter's mark does not remain applied to creatures that are dead and must be applied to a new creature on the caster's next turn.

On a save Success. For a creature with an intelligence below 8 the spell ends. For a creature with an intelligence score above 8, the creature makes an intelligence saving throw. If the creature succeeds the intelligence saving throw it takes on the Hellion form.

Allied creatures who are aware of the caster casting demonic absolution on them get advantage on their wisdom and intelligence saving throw.

Demonic Beast

Demonic Beast, chaotic evil

Armor Class 13 (natural Armor) + Dex

Hit Points 2x maximum for target

Mark of Prey Caster of the curse designates one creature as prey, that creature undergoes the effects of Hunter’s Mark: You magically mark one creature you can see within range as your quarry. Until the spell ends, you deal an extra 1d6 Force damage to the target whenever you hit it with an attack roll. You also have Advantage on any Wisdom (Perception or Survival) check you make to find it.

If the target drops to 0 Hit Points before this spell ends, you can take a Bonus Action to move the mark to a new creature you can see within range.

 Rollable Table:

Demonic Beasts get two actions, one aura ability, one special action, and a linked custom action and bonus action.

Demonic Hellion

Demonic Hellion, neutral evil

Armor Class Remains the same

Hit Points 125% of maximum for target

Rollable Table:

Demonic Hellions get a fiend form with a special attribute based on that form, one resistance, one weakness, and two custom spells if applied to a spell caster, two custom attacks based on the weapon wielded by a non caster.