EasyGems

Players obtain the gems through advancements, so progress in the world determines when they become available. Each of the nine gems is a separate item with its own effect: the Cyan Gem gives Dolphin's Grace, which cancels fall damage, the Wind Gem grants Speed, and the Corrupted Gem grants Fire Resistance and a vision effect. Several gems use cooldowns, such as 30 seconds for the Wind Gem and 2 minutes for the Green Gem's delayed positive effects after its negative ones.

Some gems act on the area around the holder. The Aura Gem pushes nearby entities away, the Chaos Gem makes players nearby levitate and gives explosion protection on a 45-second cooldown, and the Green Gem swaps positions with the nearest player within 10 blocks on a 15-second cooldown. The Pink Gem grants resistance to slow movement, and the Orange Gem is powered by a full beacon and works at the full world height. The mod is limited to one gem per server.

The mod runs on Forge for Minecraft 1.21.4 only, and it is the single build the mod is published for. Both the server and every player need it, because the gem effects are applied on both sides. The code is not open source; the author holds All rights reserved.