Floating ice island shaped as a cir...

Floating ice island shaped as a circular frozen colosseum. Central battleground with four raised ice pillars, two small frozen ponds (slippery), and scattered snow‑covered barriers. Outer walls of packed ice and blue ice with spectator stands. Four entrance gates with iron bars. Weapon racks with axes and snowball dispensers. Under‑arena lava glow visible through cracked ice. Detailed with icicle decorations, banners, and pressure‑plate traps. Void surrounding with falling snow effect.