Yesss!!! First attempts with boosted breed Valiant, and 11 attempts then got Achilles!
Good luck too all of you!
I play daily and respond to all requests, If you want add me. (island name: HERO)
Sped up some breeding, got it on my 4th try
I activated my Diamond Temple and my Breeding Roost and got 47 hrs using Diamond/Olympus on the 2nd try.
I'm sad about that, too. I never managed to breed a single Diamond Dragon. And now we only have a few days to breed one?
On the other hand it seems like people have amazing luck with this one... I'll try my Prime Eternal and Olympus later (only Diamond Type I have), but this pairing has 23 possible outcomes including many Purple/Blue dragons.
Active Dragon Story player.
ID: hiabarara