From Breaking Worlds
Spirits of Metal are organised, forceful, and persistent, though they can be melancholy. They appreciate acts of courage and ambition, and particularly approve of individuals who go their own way.
Using Metal spells or binding a spirit of Metal grants powers associated with control. Manipulating the movements of others and influencing their minds are both common Metal effects.
Principles and relationships
The key attribute of Metal is hierarchy. It is the element of age, determination, and the autumn. It is determined to establish its dominance and to control anything that might serve or threaten it.
Metal is allied with Earth, with which it shares the attribute of community. However, spirits of Metal see Earth as disorganised and lacking in structure.
Metal is also allied with Water, with which it shares the attribute of order. However, spirits of Metal are not as interested in the purely contemplative aspects of Water.
Metal is opposed to Wood. Where Metal seeks to confine and control, Wood wishes to expand and increase.
Metal is also opposed to Fire. Metal embodies authority and seeks to restrain action, while Fire pushes for freedom and rails against authority.
Inspirations for characters aligned with Metal could be imposing, dominant figures like Batman, ambitious strivers like Tony Stark (from Iron Man).
Villains aligned with Metal might be forceful and domineering, like Darth Vader (from Star Wars) or Jasper (from Steven Universe), or ruthless manipulators like Marisa Coulter (from His Dark Materials).