Ice King Boss and Magma-Redstone Armor

My 8-year-old-son have an idea for a new Minecraft boss called the Ice King. He lives in a frozen kingdom biome about 300 blocks wide. The Ice King is extremely large (about 100 blocks tall) and uses a giant frost hammer that always hits exactly where the player stands. The biome is extremely cold, so players need a special armor made of magma and powered by redstone. This armor protects the player from the cold and can repair itself using redstone. The Ice King is protected by smaller ice soldiers (about 7 blocks tall) that attack in groups. The boss fight includes multiple phases, ice storms, and precise attacks that require skill and timing. When defeated, the Ice King drops special items like the Ice Crown, Frost Core, and materials to craft advanced armor and weapons. This idea adds a new challenge, a unique biome, and a combination of magic and redstone mechanics.