Soooooo, for your dragonmarky bit.<br/><br/>The dragon marks are pretty straight forward, granting a cantrip and a 1/day 1st level spell.<br/><br/>At 5th level it automatically upgrades to the lesser mark, granting you a 1/day 2nd level spell. And at 9th level, it improves again to a greater dragonmark, and you get a 1/day 3rd-5th level spell (with the vast majority of them granting a 3rd level spell)<br/><br/>So, for cantrips, most of those are either pretty mundane utility or basic combat spells. If I were to go with only 'by the book' spells, I would probably do something like this:<br/><br/>Least - Minor Illusion and Charm Person<br/>Lesser - Enthrall<br/>Greater - Evard's Black Tentacles<br/><br/>That's kinda boring though. So what if you just have a unique 'Mark of the Futabus' or whatever you want to call it that's kind of a half-way between the charm and seduction of the succubus and the power and dominance of the incubus?<br/><br/>Least - Lash of Lust, Aura of Lust (Sexplosion!)<br/>Lesser - Enthrall [phb 238]<br/>Greater - Tentacles of the Futabus<br/><br/><strong>Tentacles of the Futabus</strong><br/><em>4th level Conjuration</em><br/><strong>Casting Time:</strong>1 action<br/><strong>Range:</strong>30ft<br/><strong>Components:</strong>V, S, M (a piece of tentacle)<br/><strong>Duration:</strong>Concentration, up to 1 hour<br/>Squirming, pink tentacles fill a 20-foot square on ground that you can see within range. For the duration, these tentacles turn the ground in the area into difficult terrain.<br/>When a creature enters the affected area for the first time on a turn or starts its turn there, the creature must succeed on a Dexterity saving throw or take 3d6 bludgeoning damage and be restrained by the tentacles until the spell ends. A creature that starts its turn in the area and is already restrained by the tentacles takes 3d6 psychic damage. If the damage of this spell would reduce a creature to 0 hit points, they are instead reduced to 1 hit point, and become charmed by everyone for the duration of the spell.<br/>A creature restrained by the tentacles that is not charmed can use its action to make a Strength or Dexterity check (its choice) against your spell save DC. On a success, it frees itself.<br/>You are not affected by this spell, however, if you move more than 30ft away from the affected area, the spell ends.<br/>