We can add an artificer class to the game

the artificer can be introduced as a base class

The artificer’s abilities act primarily on items and constructs. The artificer uses Intelligence-based Infusions instead of typical magics and psionics. Infusions work similarly to spells but must be implanted in a specific object, giving it a temporary magic effect.[

An artificer can create magic items for which he or she does not have access to the prerequisite spells. Artificers receive a number of craft reserve points every level. These points can be used instead of experience points in the creation of new magic items. Thus Artificers are able to make use of item creation feats without the experience penalty that other spell casters must take.

Constructs, mechanical beasts, and particularly [Warforged] fall under the artificer’s area of influence. Specific infusions can be cast to repair or inflict damage to any creature with a construct subtype. At fourth level Artificers may craft a homunculus companion. A homunculus is similar to a [Wizard]