Nine lifes

Lifes indicator

Old amethysm effect

I just ate amethyst shard and screen became purple. Also you will get new effect - Amethysm, which allows you sleep in bed when you have <= 5 lives

Red majority shader

When you have low count of lifes world becomes black and white (except for red)

Anaglyph effect

If some situations 3d anaglyph effect appears on your screen

Advancements

Mod has many advancements which you can get.

Amethyst stick

Mod has amethyst stick which can be obtained only through commands. You can use datapacks to create amethyst stick recipe