Upgrading Warforged [3.5]

[lightningcat]

I love stuff like this.

Another possibility is a transforming upgrade. The warforged can transform into some object - a cart, a wagon, or even a ballista or something.

Of course it's a mechanical transformation that makes an audible "durvh-durvh-durvh" noise...

Not quite the same idea, but something similar. PEACH

Beast Spark (embedded component): This small golden orb is about the size of a human fist. If inserted into the chest of an appropriate type of warforged, it gain the benefits of the beast spark, and the beast spark takes up the amulet magic item slot. The beast form ability allows them to transform into the specified animal at will, and the second is an ability that they can use in either form.
While in beast form they lose any of their normal attacks, and instead gain the attacks listed below. Also, any worn items or attached components meld into their new form and become nonfunctional. Any embedded components remain functional as well as their composite armor, although both change shape to fit the warforged beast form. While in beast form the warforged looks like a construct version of the animal unless other measures are taken to disguise it.
Warforged
Boar: beast form (+2 Str, +2 natural armor, lowlight vision, primary gore 1d8); Ferocity (can fight without penalty even when disabled or dying).
Cheetah: beast form (+2 Str, +2 natural armor, lowlight vision, trip, 2 secondary claws 1d2, primary bite 1d6); Sprint (once per hour can move 10 times normal speed when making a charge).
Leopard: beast form (+2 Str, +2 natural armor, improved grab, 2 secondary claws 1d3, primary bite 1d6, rake 1d3); Pounce ability.
Wolf: beast form (+2 Str, +2 natural armor, lowlight vision, trip, primary bite 1d6); Scent.
Warforged Scout
Dire Rat: beast form (+2 Dex, +1 natural armor, climb 20', lowlight vision, primary bite 1d4); Masterful Climber (+8 bonus on Climb checks and can always take 10 on climb checks, even if rushed or threatened, may use Dex modifier when making Climb checks instead of Str).
Eagle: beast form (+2 Dex, +1 natural armor, fly 80', 2 primary claws 1d4, secondary bite 1d4); +8 bonus to Perception checks, lowlight vision.
Fox: beast form (+2 Dex, +1 natural armor, lowlight vision, trip, primary bite 1d4); Scent.
Warforged Charger
Bear: beast form (+4 Str, -2 Dex, lowlight vision, improved grab, 2 primary claws 1d4, secondary bite 1d6); +4 natural armor.
Deinonychus: beast form (+4 Str, -2 Dex, +4 natural armor, lowlight vision, pounce, primary talons 2d6, secondary bite 2d4, 2 secondary claws 1d3); Scent.
Lion/Tiger: beast form (+4 Str, -2 Dex, +4 natural armor, lowlight vision, improved grab, 2 primary claws 1d4, secondary bite 1d8, rake 1d4); Pounce ability.
Rhino: beast form (+4 Str, -2 Dex, +4 natural armor, lowlight vision, primary gore 2d6); Powerful Charge (deal double damage when making a charge).
Moderate Transmutation; CL 7th; Craft Wondrous Item, polymorph; Price: 50,000 gp

I need a better name, but it was the best I could think of. Any other animals would be good as well.