Orichalcum Nugget is one of the rarest, 4-star Ingredients, required by the Forge to craft Revive Scroll, Super Healing Potion, and Tornado.
Bonus Drop Chance:
- S2: Province 14, S2: Province 16, S2: Province 18
- S3: Province 24, 26 and 28
- Season 4 Provinces 16, 25 and 31
Per Barry Farmz Here, the occurence in S2:14 is 12.7 % so the cheapest per World Energy is actually S1: Province 5 (all other things being equal, Stage 8) where the chance is 11.6 % but for just 3 WE.