I'm not sure if you have it already, but if not: unlike Brightsteel, Darksteel is breadable. It's hard to get the black not to split, though. I won mine on a wheel a while back and it's a really good fighter, too.
I just got a gold sale, so I'm just about to buy Eve on my main account. The second account I have vowed to spend no real money on, so it will have to do without. As can be inferred from the above, I didn't manage to breed it, in spite of continuously trying. To make it blow even more, on the main account I'm at the point where hardly any dragons are new, so didn't even get that.