Armor Class: 18
Hit Dice: 5**
No. of Attacks: 2 forelegs
Damage: 1d6 each
No. Appearing: 1
Save As: Fighter 5
Treasure Type: special
Steel spiders are constructs used by mages to guard their possessions. They are made of steel, with jeweled eyes (worth 100 gp if removed). Their main body is only one foot in diameter, with each leg being two feet long. They are often painted black or brown, to help blend in with their surroundings.
Being constructs, they are immune to fear, charm, and similar spells. They take an additional 1d6 damage per hit from any attack that rusts metal. They only take half damage from non-magical weapons.
They have darkvision to 120’. They can climb walls, even hanging upside down. They are resistant to magic, and gain a +4 bonus to Saves vs. Wands or Spells.
Steel spiders are often placed in ambush, and can only be detected on a 1 on 1d6 if they are hidden. They can leap 30 feet, and automatically gain surprise when making a leap attack if they have not already been detected.
There is a pdf HERE.