I think implicit in that question was, 'and how does it differ?'
A friend of mine has a joke in which he describes any arbitrary magic card (and later, things that weren't magic cards) by explaining how it differed from an Ornithopter (Suq'Ata Lancer is just like an Ornithopter except it's red instead of an artifact, and it has haste and flanking instead of flying, and it costs 2 and a red instead of 0, and it has 2 power instead of 0. Yup, just like an Ornithopter). The humor lay in the anti-compression - the descriptions were technically accurate, but rather harder to follow than they needed to be.
Eradicating the humor, you could alternately describe a Suq'Ata Lancer as a Gray Ogre with haste and flanking. The class of 'cards better than Gray Ogre' is a reference class that many magic players would be familiar with.
Trying to get a handle on the idea of the tulpa, it's reasonable to ask where to start before you try comparing it to an ornithopter.
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.