I have recreated this project from the ground up, with A LOT more features. Check that out here:

yosho27

JoJo Stands DataPack for Minecraft 18w11

Version 1.2.3

Instructions for Stands

Throw an arrow on top of an iron block and it will become a chest of stand arrows

Throw a stand arrow to switch to that stand (multiple players cannot have the same stand)

In survival, to switch stands you must first throw a "remove stand" and adding a stand different from the one you removed will cost 3 levels

Look straight up/down to activate/deactivate stand.

Look straight up/down while holding first hotbar slot to activate/deactivate stand's ability (stand will activate if not already)

Dio: The World:

ABILITY: freezes time (mobs, players, projectiles, the sun, etc.)

Jotaro: Star Platinum:

ABILITY: attacks hostile mobs it's touching

stops projectiles

user is immune to time stop

Polnareff: Silver Chariot:

ABILITY: automatically attacks hostile mobs within 5m

Avdol: Magician's Red:

ABILITY: set any mobs up to 20m in front of it on fire

Joseph: Hermit Purple:

ABILITY: find a structure based on item in second hotbar slot

ABILITY: make nearby stone temporarily transparent

Kakyoin: Hierophant Green:

ABILITY: emerald splash, damage hostile mobs within 20m

Josuke: Crazy Diamond:

ABILITY: repair ground items and heal players within 5m (including yourself) (long cooldown)

Ghiaccio: White Album:

ABILITY: become invulnerable

freezes nearby water and lava

Koichi: Echoes:

ABILITY: freeze and weaken indefinitely the nearest hostile mob within 5m

Fugo: Purple Haze:

ABILITY: create a cloud of deadly poison (not deadly to yourself)

Captain: Dark Blue Moon:

ABILITY: give user strength, speed, resistance, and water breathing if in water

Pucci: Made in Heaven:

ABILITY: speed up time and random tick speed

Okuyasu: The Hand:

ABILITY: pull ground items within 30m towards you

Giorno: Gold Experience:

ABILITY: heal players within 5m (including yourself)

Guerilla: Brain Storm:

ABILITY: automatically attacks (withers) hostile mobs within 15m

Magent: 20th Century Boy:

ABILITY: become invlunerable and immobile, damages hostile mobs (no cooldown)

Kira: Killer Queen:

ABILITY: make bomb

Stand on top of a dispenser containing:

1 end stone in the center and 8 Phantom Blood in every other spot to craft a Super Aja

1 arrow in the center and 2 tnt in every other spot to craft Kira's arrow

Place a Super Aja in your top-right inventory slot to access (non-functional (for now)) requiem stands for Silver Chariot and Gold Experience

1 Phantom Blood is dropped when a phantom is killed, unless by fire

Put in a repeating command block to cause all mob spawners within 1m to stop when time is stopped

/function jojo0-7:0-worldspawner

Leave first hotbar slot empty to see your stand's head