We know little of these creatures right now, and that, perhaps, makes them even deadlier. What is clear is that they will be significantly larger than you, and are likely to hit a lot harder, so be careful!

Rewards for slaying these creatures will likely depend on which way they go when making them. If, like the Stymphalian Birds they are a mechanical construct with a mind of their own, they will pose a higher threat to Rome, and be more likely to be the target of a quest or two.