Persona 5 Mod

Typeless Shadow: Afflicted by all damage types, same AI as zombie. Equipped with an Iron Sword and a Shield, but can't use the second one. Spawns mostly in Plains, Deserts and the Metaverse, but can be seen in many other biomes.

Fire Shadow: Afflicted by all damage types except fire damage. Will only attack players or attacker mobs. Wields 2 blaze rods that can be dropped upon death. Spawns rarely in Plains, but more commonly in Deserts and the Metaverse. Around 25 HP, but has some natural armour.

Ice Shadow: Afflicted by all damage types except drown damage. Same AI as the Fire Shadow, but moves slower. Wields 2 prismarine shards that can be dropped upon death. Spawns rarely in Plains, but more commonly in Mountains, frozen biomes and the Metaverse. Around 25 HP but has some natural armour.

Wind Shadow: Afflicted by all damage types except fall damage. Same AI as the Fire Shadow, but moves a quite faster. Wields 2 feathers that can be dropped upon death. Spawns in Plains and the Metaverse. Around 25 HP and practically no natural armour.

Lightning Shadow: Afflicted by all damage types except arrows and lightning damage. Same AI as the Fire Shadow, but moves extremely fast. Wields 2 Golden Swords that can be dropped upon death. Spawns in Plains, Savannas and the Metaverse. Around 25 HP and very little natural armour.

Trickster/Joker Armour set:

Only when full set: Strength 2; Speed 2; Resistance 2; Jump Boost 2.

Skull Armour set:

Only when full set: Strenght 4; Resistance 4; Jump Boost 1. Also grants immunity to weakness effect.

Fox Armour set

Only when full set: Speed 3; Jump Boost 2; Resistance 1; Haste 1. Also grants immunity to slowness effect.

Morgana Armour set

Only when full set: Jump boost 4; Speed 2; Night vision 1. Having Jump Boost also reduces fall damage minimal distance.

Wrath: 175HP; Netherite Dual Swords, Chestplate, Leggings and Boots, very tanky. Slightly slower than a zombie. Strong Knockback and Knockback resistance. Only targets players and attacker mobs. Is targeted by Iron Golems. Drops around a high amount of XP and a metaverse metal shard that can be smithed with netherite to make a new metal for weapons and tools. Only damaged by drowning, lightning, fall damage and direct attacks, Immune to ranged attacks and explosions. Summoned by making a 2 block tall redstone block pillar and putting a pumpkin on top.

Greed: 150HP, Diamond Sword and Boots and a Shield. Around the speed of a Spider. Has a bit of Knockback, but no Knockback resistance. Only targets players and attacker mobbs. Is targeted by Iron Golems. Drops around a high amount of XP and a metaverse metal shard that can be smithed with netherite to make a new metal for weapons and tools. Only damaged by drowning, lightning, fire and direct attacks, Immune to ranged attacks, fall damage and explosions. Summoned by making a 2 block tall emerald block pillar and putting a pumpkin on top.

Sloth: 300HP, Two Totems of Undying. Very high attack damage despite being unarmed. Very, very slow. Has a bit of Knockback and is immune to Knockback. Only targets players and attacker mobs. Is targeted by Iron Golems. Drops around a high amount of XP and a metaverse metal shard that can be smithed with netherite to make a new metal for weapons and tools. Only damaged by fire, lightning, fall damage and direct attacks, Immune to ranged attacks and explosions. Summoned by making a 2 block tall lapis lazuli block pillar and putting a pumpkin on top.

Envy: 125HP, Two Golden Axes and Golden Chestplate, Leggings and Boots. Around the speed of a Spider. Has some Knockback and Knockback resistance. Unlike other Shadow Bosses, Envy will target both players, Iron and Snow golems as a preemtive mesure. Drops around a high amount of XP and a metaverse metal shard that can be smithed with netherite to make a new metal for weapons and tools. Only damaged by drowning, fire, fall damage and direct attacks, Immune to ranged attacks and explosions. Summoned by making a 2 block tall Gold block pillar and putting a pumpkin on top.

Shadow Joker: 500HP, Trickster Dagger and full Trickster Suit without the mask. Around the speed of a Spider. Has some Knockback and Knockback resistance. Deals medium damage and will target both players and villagers. Will defend itself when attacked by Iron Golems. Can sporadically jump to catch players who pillar up. Only damaged by melee attacks, immune to all elemental damage types. Will drop a lot of XP and a unique version of the Trickster Dagger, with a rare chance to drop his suit. Summoned by making a T shape of diamond blocks, replacing the middle block with a Metaverse Metal Block and putting a jack-o-lantern on top.

Shadow Skull: 575HP, Skull Bat and full Skull Suit without the mask. Slightly faster than a Zombie. Hits incredibly hard, so try getting some distance. Will target players, Iron Golems and Villagers. Only damaged by direct attacks and fall damage but nor arrows, fire or anything else, as the Wind element is his weakness. Will drop a lot of XP and a unique version of the Skull Bat with a rare chance to drop his suit. Summoned like the previous Boss, except with gold blocks instead of diamond ones.

Its caves replicate those of the Overworld dimension, being the Stone replaced by Netherrack and the only ore being found the Metaverse Metal Ore, which requires a Netherite Picaxe to be mined. Gateways to this mirror dimension can be found across the Overworld, being composed of redstone lamps and some Netherrack that has leaked into the Overworld. To activate it you'll need a special item that will allow you to switch between realities. It is composed of Iron, a shadow's desire and something to "Power" the portal frame. The Inside of the metaverse contains many structures, some being more common than others. 

The most common is the palace vault, made of blackstone and filled with gold (and silver and copper if ice and fire is installed) and having a relatively small size. 

The rarer structure is the treasure tower, made of a blackstone tower and filled with Gold, Emerald and Diamond blocks, and even a Metaverse Metal Block, which can be used to get 9 metaverse metal ingots or placed as a bookshelf next to an enchanting table to make it go to level 30 with only that block, due to its ability to drain magic from the metaverse cores, which can not be seen as of now... who knows, maybe someday they'll be accessible!

The Metaverse itself is filled with shadows of all types, except boss shadows. Be careful when you go in because it's easy to get lost and be swarmed by shadows, and if you don't bring any food, even with the best armour the shadows will slowly drain your HP to 0, so bring some food to recover from your battles.

There are 3 biomes you can find: A blue field, made of warped nylium, a crimson plain, made of crimson nylium and wart blocks, and a twisted desert, with soul sand and soul soil as ground, making it a deadly trap if you don't have soul speed.

Trickster Dagger: Medium damage, increased when attacking shadows. Great attack speed. Made by Smithing an Iron Sword with a Metaverse Metal Ingot.

Ultimate Trickster Dagger: Slightly more damage than the normal version, and increased attack speed. Only obtained by defeating the Shadow Joker Boss.

Skull Bat: Heavy damage and extra Lightning-type damage. Slow attack speed. Can be used as an axe, but it's not too efficient. Can be made by smithing a wooden sword with a metaverse metal ingot.

Fox Katana: Slightly more damage than the Trickster dagger but also slightly less attack speed, and has a rapid slice extra damage if attack speed is recharged. Recipe is too complicated, use JEI or try to do it: it uses 1 iron sword, 1 iron ingot, 1 metaverse metal ingot and 2 flints, the shape is up to you to figure out!

Morgana Scimitar: Same damage as Fox Katana but slower speed. Send enemies flying into the air.

These correspond to Persona 5 actual skills, so Persona 5 Players will get an idea of these skills.

Agidyne: Sets enemy on fire (can be applied to Trickster Dagger and Ultimate Trickster Dagger)

Bufudyne: Deals a bit of drowning damage and removes speed from taget whilst also applying slowness (can be applied to Trickster Dagger, Ultimate Trickster Dagger and Fox Katana)

Ziodyne: Deals massive lightning damage (can be applied to Trickster Dagger, Ultimate Trickster Dagger and Skull Bat)

Garudyne: Sends target into the air a few blocks and drops them quickly into the ground, dealing fall damage (can be applied to Trickster Dagger, Ultimate Trickster Dagger and Morgana Scimitar)

Megidolaon: Deals Massive non-elemental damage to the target (can only be applied to the Ultimate Trickster Dagger)

Hassou Tobi: Deals multiple non-elemental small hits to the target, but deals wither damage to attacker. Is a curse and cannot be removed from weapon (can be applied to Fox Katana and Ultimate Trickster Dagger)

*making an ultimate trickster dagger with mending, sharpness, unbreaking, knockback and fire aspect will likely end up raising the experience cost in an anvil up to +1000 so it's advisable to avoid a massification and have diverse daggers for each element and situation, as most enemies from this mod won't have many elemental weakness and you should focus on non-elemental damage.