Stylized cartoon frost mushroom boss, humanoid form with thick icy bark and pale blue glowing cracks, mushroom cap shaped like a frozen dome with icicles hanging from the rim, face has glowing cyan eyes and a soft frosty mist from a crack-like mouth, arms end in frozen claws, back covered in icy plates, snow particles float around, each step leaves icy prints, color palette: ice blue, white, frosty gray, stylized cartoon, charming fantasy world