Tempered metal slices Ice, drills Rock, and dispels Fairy enchantments, yet heat, surf, current, and identical alloys resist its edge.

Super-Effective

• Ice

  Blades cleave frozen barricades.

• Rock

  Drills bore through stone.

• Fairy

  Cold iron breaks fae charms.

Not Very Effective

• Fire

  Heat softens blades.

• Water

  Waves corrode slowly.

• Electric

  Current grounds harmlessly.

• Steel

  Matching alloys blunt each other’s cutting edge.

Furnaces, hammers, and earthquakes bend steel, but armor deflects nearly every other force: normal hits, leaves, cold, feathers, mind waves, bugs, stones, dragon breath, and fairy charm, while poison has nothing to corrode.

Weak To

• Fire

  Smelters melt metal.

• Fighting

  Martial hammers dent armor.

• Ground

  Quakes topple steel structures.

Resistant To

• Normal

  Bare skin cracks on iron.

• Grass

  Vines can’t pierce plate.

• Ice

  Steel stays solid in cold.

• Flying

  Feathers versus iron is futile.

• Psychic

  Thoughts bounce off helmets.

• Bug

  Mandibles break on metal.

• Rock

  Stone chips on contact.

• Dragon

  Even dragonfire struggles.

• Steel

  Steel-on-steel exchanges usually trade at low efficiency.

• Fairy

  Cold iron is a classic counter to fae enchantments.

Immune To

• Poison

  Toxins cannot corrode ironclad skin mid-battle.