Vampire Spellsword(Sabastian Dupont)

Shapechanger. If the vampire isn’t in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form.

While in bat form, the vampire can’t speak, its walking speed is 5 feet, and it has a flying speed of 30 feet. Its statistics, other than its size and speed, are unchanged. Anything it is wearing transforms with it, but nothing it is carrying does. It reverts to its true form if it dies.

While in mist form, the vampire can’t take any actions, speak, or manipulate objects. It is weightless, has a flying speed of 20 feet, can hover, and can enter a hostile creature’s space and stop there. In addition, if air can pass through a space, the mist can do so without squeezing, and it can’t pass through water. It has advantage on Strength, Dexterity, and Constitution saving throws, and it is immune to all nonmagical damage, except the damage it takes from sunlight.

Legendary Resistance (3/Day). If the vampire fails a saving throw, it can choose to succeed instead.

Misty Escape. When it drops to 0 hit points outside its resting place, the vampire transforms into a cloud of mist (as in the Shapechanger trait) instead of falling unconscious, provided that it isn’t in sunlight or running water. If it can’t transform, it is destroyed.

While it has 0 hit points in mist form, it can’t revert to its vampire form, and it must reach its resting place within 2 hours or be destroyed. Once in its resting place, it reverts to its vampire form. It is then paralyzed until it regains at least 1 hit point. After spending 1 hour in its resting place with 0 hit points, it regains 1 hit point.

Regeneration. The vampire regains 20 hit points at the start of its turn if it has at least 1 hit point and isn’t in sunlight or running water. If the vampire takes radiant damage or damage from holy water, this trait doesn’t function at the start of the vampire’s next turn.

Spider Climb. The vampire can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

 Ether Warrior.  The vampire use their intelligence instead of strength on attack rolls and damage rolls.

Ether Points (17/rest)- By spending an ether point the spell sword can do one of the following things:
- Add their intelligence modifier to their attack rolls for a turn(can have only one of this active at a time)

- Add their intelligence modifier to their AC for a round with a reaction.

- Add their intelligence modifier to an intelligence, wisdom, or charisma saving throw with a reaction.

- Add their intelligence modifier to the damage of their weapon attacks for one round.

- Double their movement speed for a minute(can't only have one of this effect active at a time).

- Add their intelligence modifier to perception and insight checks(can have only one of this effect active at a time).

Arcane Spell casting.  The Vampire Spellsword's spell casting ability is Intelligence (spell save 18, +10 to hit).  The vampire can cast the following spells:

1st level (4 slots): absorb elements, shield, disguise self

2nd level (3 slots): shadow blade, misty step

3rd level (3 slots):  counter spell, dispel magic

4th level (2 slots):  Dimension Door, Greater Invisibility

Multiattack (Vampire Form Only). The vampire makes two attacks, only one of which can be a bite attack.

Sword of the wilting leaf +2. Melee Weapon Attack: +13 to hit, reach 5 ft., one creature. Hit: 11 (1d8 + 7) slashing damage.  On a hit a a living creature hit by this weapon must succeed on a DC 19 Constitution saving throw or lose 1d4 Strength on a failure that lasts until that creature finishes a long rest.

Unarmed Strike (Vampire Form Only). Melee Weapon Attack: +11 to hit, reach 5 ft., one creature. Hit: 8 (1d8 + 4) bludgeoning damage. Instead of dealing damage, the vampire can grapple the target (escape DC 18).

Bite (Bat or Vampire Form Only). Melee Weapon Attack: +11 to hit, reach 5 ft., one willing creature, or a creature that is grappled by the vampire, incapacitated, or restrained. Hit: 7 (1d6 + 4) piercing damage plus 10 (3d6) necrotic damage. The target’s hit point maximum is reduced by an amount equal to the necrotic damage taken, and the vampire regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and then buried in the ground rises the following night as a vampire spawn under the vampire’s control.

The vampire can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The vampire regains spent legendary actions at the start of its turn.

Move. The vampire moves up to its speed without provoking opportunity attacks.

Unarmed Strike. The vampire makes one unarmed strike.

Bite (Costs 2 Actions). The vampire makes one bite attack.

Cast Spell (Costs 2 Actions). The vampire casts a spell with a casting time of an action or bonus action.