Racial qualities and adjustments of the warforged were published in the Eberron Campaign Setting and later reprinted in Monster Manual III. Warforged are produced with their own armor and have various immunities, including to poison and disease.
Being made of inorganic materials, the Warforged are animated by magic, with their 'lifeblood' being an alchemical fluid that helps energy flow through their bodies. However, what separates them from other synthetic beings is that Warforged possess souls, given to them by the Gods.
After months of tinkering and multiple revisions, Wizards of the Coast is officially releasing the Artificer class in its new Dungeons & Dragons sourcebook, Eberron: Rising From The Last War.
For regular Warforged, Artificer is the best natural fit, as they also have auto-prepared repair/rust spells, and they are INT-based.
The warforged are very similar, in appearance, concept and history, to the War Golems of the comic Battle Chasers. The War Golems were also built to fight in a war and were also social outcasts after the conflict.
Inside Eberron: Rising from the Last War.
Warforged, despite their appearance, are not constructs. In 3rd edition when they were first introduced to DnD, warforged were constructs, but in 5e they are humanoids.
A warforged takes damage from heat metal and chill metal as if he were wearing metal armor. Likewise, a warforged is affected by repel metal or stone as if he were wearing metal armor. A warforged is repelled by repel wood. The iron in the body of a warforged makes him vulnerable to rusting grasp.
The warforged are very similar, in appearance, concept and history, to the War Golems of the comic Battle Chasers. The War Golems were also built to fight in a war and were also social outcasts after the conflict.
278 to 318 pounds, with an average of 298 pounds. Size modifier = 2d6. Height = 5 feet + 10 inches + your size modifier in inches. Weight in pounds = 270 + (4 × your size modifier)