Generate a high-performance Minecra...

Generate a high-performance Minecraft schematic for a 'Nexus Crypt' battle arena. Dimensions: Max 64x24x64. Style: Ancient Ruined Crypt, void/ethereal aesthetics. Palette: Deepslate Tiles, Polished Basalt, Obsidian, Gilded Blackstone. Features: - A large circular battle floor (48 blocks diameter). - Sunken center with a Purple Stained Glass floor over a Crying Obsidian 'void'. - 4-8 Ruined gothic pillars around the edges. - Floating shattered debris in the upper corners to create atmosphere. - NO interior rooms, entities, or complex mechanics. One open, clean arena. Optimization: Use simple geometry, minimal chests/shulkers.