New Overworld Dungeon with Buffed Spawners and Rainbow Armor

I have an idea for a massive high-difficulty dungeon that spawns in the Overworld for late-game players:

1. The Entrance / Map:
A structure generated in the Overworld with 6 flat black square blocks, each featuring a magic circle-like block that emits a red light. Breaking this black block drops a "Mysterious Black Block" and a map leading to a massive hidden dungeon.

2. The Mysterious Black Spawner:
Inside the dungeon, this new spawner summons random hostile mobs. Every mob spawned comes with full Netherite Armor and an infinite Strength 200 buff!

3. 20 Random Chests (Drop Rates):

• 1/2 (50%): Enchanted Golden Apple
• 1/10 (10%): Strength 100 Potion
• 1/10 (10%): Rainbow Leggings (1,000 Defense)
• 1/20 (5%): Rainbow Chestplate (50,000 Defense, Blast Protection 230, +1 random enchantment)
• 1/30 (3.3%): Rainbow Boots with a new "Air Walk" enchantment (automatically places glass underneath when walking in mid-air).
• 1/100 (1%): Light Helmet (emits a light beam from the front to illuminate dark areas).

This would be the ultimate challenge for players exploring the Overworld! Please consider adding it.