This add-on implements a new type of crystal which will spawn on random locations in your world. You can bump into the crystals to get a status effect. There’s no way to tell whether you’ll get a nerf or a buff effect. In that sense, they are quite similar to Lucky Blocks. They are quite useful if you are in a battle and quickly need a buff, but then there’s of course always the risk of getting a nerf instead.

Creator: Keyyard, Twitter Account
Credits: Thanks to Xu_Jiaxin_ for the effect technique!

How does it work?
The Lucky Crystals spawn all over the Overworld. Every time that a pig spawns there is a chance that it will spawn a Lucky Crystal instead of the pig. You could also use the pig spawn egg to attempt spawning a crystal.
Click here to view a GIF animation
Here’s a list of the different status effects you can get by walking into the crystal.
Speed
Jump Boost
Instant Heal
Health Boost
Levitation
Instant Damage
Explosion
Also mobs are affected by the crystals. As some of the crystals are quite dangerous it could sometimes be to your benefit to trick monsters into bumping into a crystals (and hopefully explode).

Installation
1.Download Behaviors .McPack
2.Activate the pack for a world in-game