A floating, void-themed endgame boss summoned by ritual. The Umbral Eye fights across three telegraphed phases — tuned so that even full netherite, a beacon, and golden apples make for only a knife's-edge win.
祭壇の儀式で召喚する浮遊ボス「虚空の蝕王オクルス」を追加。予兆付きの3段階で戦う
