Iron Warriors

Native:
Native Iron warriors are more experienced Stone Warriors with better gear. They wear standard gear along with several pieces of iron jewelery and have tatoos. Their spear is made completely out of iron.

Viking:

Viking Iron warriors are more experienced Stone Warriors with better gear. They wear standard gear along with an iron chainmail hooded-vest, iron bracelets, an iron belt buckle, iron topped-sandals and an Iron rimmed wooden shield. Their axehead is made out of iron and the handle out of wood.

Summary
As the Second strongest, the Iron Warrior needs 1 iron and two wood resources. Also is best when fighting in a quick battle. It is recommended to use this at all times. When chicken warriors are unavailable iron warriors are the next best thing. Iron Warriors are useful as a means of soaking up damage alongside Stone Warriors to allow expensive Chicken Warriors to live longer.

Pros

 * Easy to assemble.
 * Iron can be found almost anywhere(Darker looking iron on the ground).
 * Not overly difficult to beat Chicken Warriors with Iron Warriors.

Cons

 * Chicken warriors are Better in terms of attack (can kill up to 6 units in one throw).
 * Iron tends to form in clumps, if you do not build near a clump it can be hard to obtain.