Haunted Hills Biome

This is my suggestion for a new biome in 1.15. It is the Haunted Hills, and would have Haunted Grass, which would be a variant of the grass block, like mycelium, and there would be Dead Bushes, stone mounds, and mushrooms everywhere. No normal mobs would spawn, the only mob would be the wizard, which spawns in the wizard's castle. It is a large structure, with 25 rooms, and is about as rare as an ocean monument. In this rare biome, about as common as the ice spikes, this structure is challenging to find. There would be 5 chests, one of which has a Splash Potion of Healing, presumably in the wizard's collection. There is only one wizard in the building, and he spawns in the top tower. When defeated, he drops his staff, which does 6 damage with 1 hit. He drops it 100% of the time. Please consider adding this to the game. It would make Minecraft more fun and be a meaningful addition to the game