mutations

They are like enchantments but for the character themselves there would be a small compartment for the mutations which you would find in chests in end city's the compartments would be like the off hand but would have three or four spaces where the mutations could be placed and they could look like small stars and when one is on small particles even smaller than potion particles are  left behind from where the player was like stars where they were if the player was running and each has different colors, some ideas for mutations would be longer reach say one block extra heart extra hunger meat thing maybe it takes less experience to enchant items, it takes less food and items to tame creatures, also a mutation you can put on certain mobs like that they will not burn in the sunlight or they are not aggressive toward players or for a creeper or a pet wither they cannot blow up blocks and creepers wont explode, obviously some of these would be extremely rare and some would be much easier to find than others and they would have their own names and maybe some would be different so it doesn't seem like a mod pack but just enough so it feels like a natural part of minecraft.