Hello sorry but this don't mod i make mini update use textures
0. I add Empty mobs egg , conversion and craft
1. Conversion - an mobs in egg | you can find 2-3 pieces in the mansion a chance of 40%.
2. Empty mobs egg - If you throw it at mobs, then create an egg of mobs (zombies, villagers) + it has 3 powers | can be bought from a traveling merchant for 30 emeralds.
3. Craft see images
So, I went my own way with this..