Battle of the Clowns - Art vs Joker

Thinking about Batman crossovers and I thought of one I'd like to see. My idea is Art the Clown (from Terrifier), is stalking the streets of Gotham and the Joker doesn't take kindly to the new clown invading his city. If you really want to add to the mix, maybe Clownhunter is tracking down both of them.

Code Name: Joker

Real Name: Unknown (possibly Jack Napier, Arthur Fleck, Jerome Veleska, Jeremiah Valeska) 

Team Affiliation: Injustice Gang, Injustice League, Justice League of Arkham

Medium Humanoid, Chaotic Evil

Armor Class: 14 (Dex) or 18 (Joker Batsuit, Dex)

Hit Points: 100

Speed: 30 ft.

Challenge: 5 (1,800 XP)

Str 11 (+0) Dex 18 (+4) Con 18 (+4) Int 16 (+3) Wis 8 (-1) Cha 14 (+2)

Saving Throws: Int +7, Cha +6

Skills: Advanced Tech +7, Insight +3, Intimidation +6, Investigation +7, Persuasion +6, Sleight of Hand +8, Stealth +8

Damage Resistance: Poison

Senses: passive Perception 9

Languages: English

Unique Traits

Broken Mind: The Joker's twisted mind grants him many boons. He has advantage on all Wisdom saves. His mind can't be read and anyone attempting to do so must make a Wisdom saving throw (DC 15) or take 2 (1d4 psychic damage). Additionally, he has advantage on all Saving Throws pertaining to being charmed or controlled. He is immune to fear and madness effects and spells. He is immune to the effects of Smilex or a Hideous Laughter spell/effect.

Exploit Laughter: Joker has advantage on all attacks against targets affected by Smilex or a Hideous Laughter spell/effect.

Actions

Mutliattack: Joker gets two melee attacks.

Crowbar or Cane: Melee Weapon Attack. +4 to hit, reach 5 ft., one target. Hit: 3 (1d6) bludgeoning damage.

Knife: Melee or Ranged Weapon Attack. +4/+8 to hit, reach 5 ft. or range 20/60 ft, one target. Hit: 2 (1d4) or 6 (1d4+4) piercing damage.

Pistol: Ranged Weapon Attack. +8 to hit, range 50/150 ft., one target, Hit: 11 (2d6+4) piercing damage. (15 round clip)

Razor Sharp Throwing Cards: Ranged Weapon Attack. +8 to hit, range 10/30 ft, one target. Hit: 6 (1d4+4) slashing damage.

Bonus Actions

Squirting Flower - Acid (recharge 5-6): Joker's flower squirts deadly acid at a target within 10 ft. The target must make a Con saving throw (DC 15) or take 14 (4d6) acid damage.

Squirting Flower - Smilex (recharge 5-6): Joker's flower squirts Smilex laughing gas at a target within 10 ft. The target must make a Wis saving throw (DC 15) or perceive everything as hilariously funny and fall into fits of laughter, falling prone and becoming incapacitated for 1 minute. A creature with intelligence score of 4 or less isn't affected. At the end of each of its turns, and each time it takes damage, the target can make another Wisdom saving throw. The target has advantage on the saving throw if it's triggered by damage. On a success, the effect ends. 

-------------------------------------------------

As statted below, Art is has a challenge of 1. To beef him up add 50 or so hit points, up his regeneration to 10 HP a turn, increase his proficiency bonus by 1 or 2, and give him multiattack with slash.

Bendjinn's original post (with pdf link) can be found here.