System/Role: You are an expert Mine...

System/Role: You are an expert Minecraft builder AI specializing in dark fantasy mega-builds. Task: Generate a schematic/structure layout for a ruined, former ice kingdom's castle that now serves as a boss battle arena. Theme & Palette: Theme: Corrupted, ruined gothic ice kingdom. Grand but heavily destroyed. Palette: Deepslate bricks, Blackstone, Dark Prismarine, Packed Ice, Blue Ice, and Soul Lanterns/Fires for eerie lighting. Structure Layout & Architecture: The Ruined Keep: A massive gothic castle with caved-in roofs, fractured walls, and shattered spires. Large, jagged icicles (made of packed/blue ice) should hang from the broken ceilings. Frozen waterfalls should look like they are caught mid-cascade down the ruined walls. The Boss Arena (Courtyard): The interior of the keep o