the monstrosity age

so in Minecraft dungeons the  monstrosity is thar and it is nice and all but why add  it in Minecraft the copper one the netherite one the stone one the golden one the Redstone one the ender one and the nether rack one and another one is a build a new dungeon for the stone one and the red stone a dungeon for it and the end one a hole going in to a dungeon for it and for the netherite one the is the forging golems mini one that kill you and the copper one is in the copper dungeon  and the nether rack one thar is a nether rack dungeon and the golden one is in the golden dungeon and the Redstone one is in a red stone dungeon and i do not know if i did that one but the the ways they fight is good so the ender one has void thing that kill you in one touch and the mini ones of the big one that do the same thing the Redstone one same no void ones for the monstrosity's but i am going to say that  the rest of them you can do the thing for them and wen they are defeated you get the pet ones and the obsidian one