Bones

Legendary Advantage (3/Day). If Bones fails a saving throw, he can roll a second time, and take the higher of the two numbers.

Infectious Bite. Bones's fanged maw is a natural weapon, which he can use to make unarmed strikes. If he hits with it, he deals piercing damage equal to 2d6 + his Strength modifier, along with 1d4 necrotic damage.

Spellcasting. The lich is an 18th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 20, +12 to hit with spell attacks). The lich has the following druid spells prepared:

Cantrips (at will): Control Flames, Druidcraft, Produce Flame, Thunderclap

1st level (4 slots): Earth Tremor, Entangle, Ice Knife

2nd level (3 slots): Blindness/Deafness, Flame Blade, Flaming Sphere, Gentle Repose, Moonbeam, Spike Growth

3rd level (3 slots): Animate Dead, Conjure Animals*, Gaseous Form

4th level (3 slots): Blight, Confusion, Giant Insect, Polymorph

5th level (3 slots): Cloudkill, Contagion, Maelstrom, Reincarnate

6th level (1 slot): Wall of Thorns

7th level (1 slot): Fire Storm, Reverse Gravity

8th level (1 slot): Earthquake, Tsunami

9th level (1 slot): True Resurrection

Turn Immunity. Bone Daddy has immunity against any effect that turns undead.

Crafty Bastard. When any creature is summoned by Bones, they receive the Undead title along with the ones they already had, and an alignment of Chaotic Neutral. If the creature is humanoid, they are armed with one of the following items; a shield, a club, a javelin, or 2d8 blowgun needles and a blowgun. Each of these pieces has been made by Bones, crafted out of the bones and body of his previously fallen foes.

*for flavor, the only animals he can create with Conjure Animals are ones that would live in a swamp domain.

Paralyzing Touch. Melee Spell Attack: +12 to hit, reach 5 ft., one creature. Hit: 10 (3d6) cold damage. The target must succeed on a DC 18 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Symbiotic Entity. Bones can use Wild Shape to awaken the spores that are infused in him to gain +72 temp HP and deal 1d6 additional necrotic damage when he hits with a melee weapon attack. This lasts for 10 minutes, until he loses all these temporary hit points, or until he's forced to use Frenzied Mau.

Maniacal Laughter. Bones has learned to laugh. He uses this talent in response to all emotional situations, whether it's appropriate or not--if Bones receives 20+ points of damage, he bursts into a fit of laughter. All surrounding creatures within 20 feet of him, whether they're on his side or not, must make a DC 16 Charisma saving throw or be frightened for 1 minute.

Frenzied Mau. Bones can throw himself into a vicious feeding frenzy. As a reaction, he can make a special attack with his bite. If the attack hits, it deals its normal damage, and he gains temporary hit points (2d6 + Con). He can’t use this trait again until he finishes a short or long rest, and he can't use spells until after his next turn.

Bones 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. He regains spent legendary actions at the start of its turn.

Cantrip. Bones casts a cantrip.

Paralyzing Touch (Costs 2 Actions). Bones uses its Paralyzing Touch.

Frightening Gaze (Costs 2 Actions). Bones fixes his gaze on one creature he can see within 10 feet of it. The target must succeed on a DC 18 Wisdom saving throw against this magic or become frightened for 1 minute. The frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a target's saving throw is successful or the effect ends for it, the target is immune to Bones's gaze for the next 24 hours.

Disrupt Life (Costs 3 Actions). Each non-undead creature within 20 feet of Bones must make a DC 18 Constitution saving throw against this magic, taking 21 (6d6) necrotic damage on a failed save, or half as much damage on a successful one.