Adamantine juggernauts are a specialized golem, created to be more than just a guardian or weapon, they must be instilled with a willing soul who keeps all memory and personality they had in life. This allows them to be martial masters, cunning tacticians, and potent leaders. They are capable of using magic items and on occasions even rarer than the creation of one of these powerful entities, cast spells if they were a caster in life, although they must reteach themselves or otherwise relearn.
Physically they resemble a massive humanoid in blue armor wielding a flail and shield larger than an average person, made of the same metal as themselves. In the event of one being able to cast spells, they ignore the somatic components of a spell and use their shield as the spellcasting focus. They stand five times as tall as humans and weigh 200 times as much, totaling around 32,000 lbs.
