Caged Mobs Mod 1.16.5, 1.16.3 is a mod that adds a new system to Minecraft to make it easier for players to earn items dropped from creatures. To put it simply, it would be a miniature “mob farm” system.
Features:
To start with the mod, you will need to create the first 2 important items that are DNA Sampler and Mob Cage. DNA Sampler when used on organisms (by left-clicking on them) stores their DNA. You can then use the DNA you obtained onto Mob Cage (you need to put the proper environment in first). Mob Cage will create the nucleus of that creature. Once that clone is at 100%, you can “harvest” them.
You can put a lot of different creatures into Mob Cage including Ender Dragon, Wither or Elder Guardian but you will need to upgrade your DNA Sampler. You can also upgrade Mob Cage to Hopping Mob Cage to automate it along with a few other upgrades.
In order to be able to see the mod details clearly such as which creatures can be put in Mob Cage, their suitable environment, and so on, you can use JEI (Just Enough Items).