Uncanny Eggs
Uncanny eggs is a simple little mod that allows players to craft a couple of eggs which when right clicked gives an average 45% change of being given a random spawn egg.
There are two varieties of egg, one that produces passive spawns called the Uncanny Egg and if this is combined with a spiders eye it becomes a Corrupted Egg and can then give hostile spawn eggs.
For pack devs the eggs are loot table based if you wish to change what spawn eggs can drop.
The Uncanny Eggs Team
