New creatures and new items that I think of

This creature drops a lot of items, the most important being Flame Bars (in the Overworld, they're called Sea Bars). In the Nether, this creature is called the Flame Rider, a relative of the Flamebringer. The Flame Rider rides a flaming horse, breathes fire, wields a flaming sword, and wears fire armor with defense higher than the current strongest armor. It has 300 health on Normal difficulty, 310 on Hard, and 500 on Hard. Its attack power is fixed at 50, but its attack speed increases with each difficulty level. Then there's the Tsunami Warrior in the Overworld, wearing water armor with the same defense as the Flame Armor, wielding a water shield that can be thrown, with an attack power of 40, but faster than the Flame Rider. Both Nether and Overworld creatures can be crafted into armor and weapons. That's my idea.