The Iron-Forged Ranking System

The Great Iron-Forged Empire divides all the dragons who live within into a simple ranking system. The rank for each dragon is determined by either their lineage or their job, with the former taking precedence over the latter if they have an important or special lineage. The names and descriptions for each rank is listed below, starting with the most important.
===== Platinum Caste =====
The Platinum Caste is the highest of them all; reserved only for the Emperors of the Empire. It is the top rank, along with being the smallest rank overall, including both the four leaders and the co-leader, Perhin Nightglow. The only way to obtain this rank is by one of the leaders themselves granting it to another dragon, and that is unlikely to happen since they all have to agree with it (and they are all satisfied with how it is currently), and it doesn't automatically get "filled" if one of the leaders ends up passing away.
The requirements to ascend to a leader is known only to the Emperors themselves, and is not something given lightly.
===== Andesite Caste =====
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===== Gold Caste =====
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===== Silver Caste =====
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===== Rhodium Caste =====
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===== Marble Caste =====
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===== Cobalt Caste =====
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===== Steel Caste =====
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===== Titanium Caste =====
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===== Iron Caste =====
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===== Obsidian Caste =====
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===== Alabaster Caste =====
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===== Basalt Caste =====
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===== Bronze Caste =====
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===== Copper Caste =====
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