In the rich text editor:
[item=3261]
In comments and forums:
[](https://worldofgaia.org/world/items?name=Egg of Evolution)
What's inside the egg?
Type: Active Familiar
Obtained: Opening Spirit Packs
Use: On a Spirit or on a Den
Effect: After 3 artworks/literatures including the egg it hatches into a Legendary Familiar Slot which attaches to the character/den. The creature that hatches has their unique description in the slot's notes. The description and effect(s) are crafted from a combination of the pack the egg came from and the submissions which included it.