Armblade

Common (requires attunement by a warforged)

An armblade is a magic weapon that attaches to your arm, becoming inseparable from you as long as you’re attuned to it. To attune to this item, you must hold it against your forearm for the entire attunement period.

As a bonus action, you can retract the armblade into your forearm or extend it from there. While it is extended, you can use the weapon as if you were holding it, and you can’t use that hand for other purposes.

Variants:

Battleaxe Armblade

  • Damage:
    • One-handed: 1d8 slashing
    • Two-handed: 1d10 slashing
  • Properties: Versatile
  • Weight: 4.0 lbs.

Club Armblade

  • Damage: 1d4 bludgeoning
  • Properties: Light
  • Weight: 2.0 lbs.

Dagger Armblade

  • Damage: 1d4 piercing
  • Range: 20/60
  • Properties: Finesse, Light, Thrown
  • Weight: 1.0 lbs.

Flail Armblade

  • Damage: 1d8 bludgeoning
  • Weight: 2.0 lbs.

Handaxe Armblade

  • Damage: 1d6 slashing
  • Range: 20/60
  • Properties: Light, Thrown
  • Weight: 2.0 lbs.

Hooked Shortspear Armblade

  • Damage: 1d4 piercing
  • Properties: Light
  • Weight: 2.0 lbs.

Javelin Armblade

  • Damage: 1d6 piercing
  • Range: 30/120
  • Properties: Thrown
  • Weight: 2.0 lbs.

Lance Armblade

  • Damage: 1d10 piercing
  • Properties: Heavy, Reach
  • Weight: 6.0 lbs.

Light Hammer Armblade

  • Damage: 1d4 bludgeoning
  • Range: 20/60
  • Properties: Light, Thrown
  • Weight: 2.0 lbs.

Longsword Armblade

  • Damage:
    • One-handed: 1d8 slashing
    • Two-handed: 1d10 slashing
  • Properties: Versatile
  • Weight: 3.0 lbs.

Mace Armblade

  • Damage: 1d6 bludgeoning
  • Weight: 4.0 lbs.

Morningstar Armblade

  • Damage: 1d8 piercing
  • Weight: 4.0 lbs.

Quarterstaff Armblade

  • Damage:
    • One-handed: 1d6 bludgeoning
    • Two-handed: 1d8 bludgeoning
  • Properties: Versatile
  • Weight: 4.0 lbs.

Rapier Armblade

  • Damage: 1d8 piercing
  • Properties: Finesse
  • Weight: 2.0 lbs.

Scimitar Armblade

  • Damage: 1d6 slashing
  • Properties: Finesse, Light
  • Weight: 3.0 lbs.

Shortsword Armblade

  • Damage: 1d6 piercing
  • Properties: Finesse, Light
  • Weight: 2.0 lbs.

Sickle Armblade

  • Damage: 1d4 slashing
  • Properties: Light
  • Weight: 2.0 lbs.

Spear Armblade

  • Damage:
    • One-handed: 1d6 piercing
    • Two-handed: 1d8 piercing
  • Range: 20/60
  • Properties: Thrown, Versatile
  • Weight: 3.0 lbs.

Trident Armblade

  • Damage:
    • One-handed: 1d8 piercing
    • Two-handed: 1d10 piercing
  • Range: 20/60
  • Properties: Thrown, Versatile
  • Weight: 4.0 lbs.

War Pick Armblade

  • Damage:
    • One-handed: 1d8 piercing
    • Two-handed: 1d10 piercing
  • Properties: Versatile
  • Weight: 2.0 lbs.

Warhammer Armblade

  • Damage:
    • One-handed: 1d8 bludgeoning
    • Two-handed: 1d10 bludgeoning
  • Properties: Versatile
  • Weight: 5.0 lbs.

Whip Armblade

  • Damage: 1d4 slashing
  • Properties: Finesse, Reach
  • Weight: 3.0 lbs.

Yklwa Armblade

  • Damage: 1d8 piercing
  • Range: 10/30
  • Properties: Thrown
  • Weight: 3.0 lbs.

Source: Eberron: Rising from the Last War p. 276