The Minecraft Multiverse Add-on adds new types of powerful monsters in a Minecraft world here players have to fight them to survive also there are friendly mobs who will help the player in their adventures

Villager Rifleman

Skulk Sentinal

For more details on  the addon watch this video

This add-on is still in development and this is the beta or experimental version of the addon future versions will update and add more new mobs and biomes in the game follow my channel for getting latest updates on the addon