Pack of 8 different randomizers for Minecraft 1.18+
If you have any other idea to add for the randomizer list, you can suggest it! (Discarded ideas: Block Drops Randomizer, Mob Drops Randomizer, and Recipe Randomizer)

If you like this and want another hard and chaotic challenge, check this other datapack I made: Minecraft Chaos Datapack (160 different random effects)

About

This datapack is a combination of 8 different random packs I made, and it's customizable. It gives a challenging and different way to play the game. Info about the different randomizers below!

List of randomizers

- Chest Loot Randomizer

• Randomizes the loot found in structures

- Entity Color Randomizer

• Randomizes the name and glowing aura color of every mob and player
• When a mob takes damage, they get glowing for one second
• Includes a death count scoreboard and a health list on TAB

- Mob Equipment Randomizer

• Randomizes the items of every hostile and neutral mob
• Even mobs that don't look like they're wearing armor or items, they actually are
• Every mob has a chance of dropping their items

- Mob NBT Randomizer

• Randomizes some mob NBT tags like Movement Speed, Attack Damage, and Health
• Gives every animal and Zombie a chance of being a baby variant
• Gives every Creeper a chance of being charged
• The Ender Dragon is not affected by these tags

- Mob Spawning Randomizer

• Randomizes the spawn of every passive and hostile mob
• Exceptions:
• Bat
• Blaze
• Piglin
• Iron Golem
• Villager
• Water Mobs
• Ender Dragon

- Player Weapon Randomizer

• Every 5 seconds a random melee weapon is given to each player on their hotbar slot 1
• Every 5 seconds a random long-range weapon is give to each player on their hotbar slot 2
• Every 5 seconds each player gets 1 to 4 arrows
• Every item can get random enchantments
• You can ONLY attack by using the items given by the randomizer

- Potion Effect Randomizer

• Every 5 seconds each mob and player will get a random potion effect
• Each effect will last for 15 seconds (except for Levitation), for a total of 3 effects at once
• Potion effects you can't get: Instant Damage, Wither

- Time and Weather Randomizer

• Every 30 seconds the time will advance or change, or either change the weather between rain, thunder, and normal

Customization

The datapack includes the option to disable and enable the randomizers you want. Simply use /trigger hrm.settings! (Sadly, due to how Minecraft works, the Chest Loot Randomizer can't be disabled this way. If you really want to disable it, open the datapack .zip file, then go to "data/minecraft/loot_tables/chests" and delete the folder named "chests")

Hope you enjoy playing with this! (it's quite challenging though lol)