Magma Rex

Minecraft has lots of monsters but it has very few boss mobs that are very hard to kill. Currently in 1.14 the Nether doesn't have its own boss mob so after a lot of thinking I came up with a boss called the Magma Rex that lives in the nether.

Firstly, you may be asking how to summon it and all you need to know is to get Dragon's Breath in a bottle and this can be a new feature, that you have to drink it 25 blocks from naturally generated Nether lava ocean. 

After the Magma Rex is summoned you will need to know this is just as hard as the Ender Dragon and it has 20 attack damage which is its melee bite force but only 175 health making it soo dangerous that you need to know that without armour its melee bite can destroy you in one hit. Another type of attack it does is that it stomps hard which is kind of a ranged attack dealing you about 10 damage and lastly it can randomly charge at you and it deals about 15 damage but you can actually move out of its way making it deal 15 damage itself. 

It should look like a T.rex from any dinosaur mod except it is covered with lava. It is like the thorns enchantment  which means melee damage from the player will cause the player to get damaged as well, so ranged attacks are a must have for the player. After killing it you can actually earn lots of xp, most likely the same as the Ender Dragon and it will drop something like a lava egg which means you can respawn it or use it as decoration

This boss could be added but a lot of things will be different which is okay. Thanks for reading