Golden deer in leafy caves

​Description: A new ultra-rare passive/neutral mob called "The Golden Stag" that spawns rarely in Lush Caves and feeds on Glow Berries. ​The Midas Touch Effect: If you stand within 7 blocks of it, your health hearts slowly turn into "Golden Hearts" every 2 seconds. If you escape, you keep them as extra absorption hearts. If you stay too long, you turn into gold (die). ​The Drop (Musk): Upon defeat, it drops "Stag Musk" used to brew a "Potion of Midas". Walking with this potion temporary turns nearby deepslate/stone into Gold Ore for 15 seconds. ​Immunity: It is immune to normal arrows and potions. It can only be damaged by Netherite weapons or Golden Arrows to make the hunt challenging.