The Steel Sentinels are powerful elemental constructs that were created by the Mythar, during The Aeonic Struggle. These constructs were forged of hardened steel and refined ores, making them innately resistant to arcane magic. The Steel Sentinels were even feared by the Elementari, as they were often used to keep these powerful beings imprisoned. Their nigh-indestructible nature made them a formidable opponent, and their power was unmatched by most other creatures in the realm. Despite their immense power, many of the Steel Sentinels that once stood vanguard over the slumbering Elementari were lost to the ages and succumbed to the elements. Those that remained were re-fashioned and studied by those who discovered them, attempting to reverse engineer the cosmic smith's work.
Over time, the knowledge of how to create Steel Sentinels was lost, and few remained in existence. However, the Dao, a powerful race of earth genies, have managed to master the creation of these constructs. They stumbled upon the tomb of a long-dead Elementari, which was guarded by the very same Steel Sentinels, and were able to learn the secrets of their creation. Today, Steel Sentinels are a rare and powerful force in the world of Osira and Tolria. While many have been lost to the ages, those that remain are revered and respected by those who understand their power. They are often used to guard important locations and protect powerful artifacts, and their nigh-indestructible nature makes them a formidable opponent for any who would dare to cross their path.
In conclusion, the Steel Sentinels are powerful elemental constructs that were created by the Mytharil Empire, during the early ages of creation. Their nigh-indestructible nature and innate resistance to arcane magic made them a feared opponent, and they were often used to imprison the rampaging Elementari. While many have been lost to the ages, those that remain are still revered and respected by those who understand their power. The Earth Djinn have managed to master the creation of these constructs, ensuring that the legacy of the Steel Sentinels lives on.