If you cursed the difficulties in breeding the other ultra-rear-common dragons, you're really going to go to town with your curses on this one.
Anyway popped in a breeding boosts and an incubation boosts and after some really nightmarish failures, finally got the rascal
And yes, for those wondering if S8 got the combination of Black and Yellow right and if you're wondering if the breeding is switched on, yes it is.
You may have to be patient with this one cause there are a total of 28 possible failures with pure black and yellow, 32 failures with hybrids, and most of them are long
Possible breeding outcomes
Dragon Rarity Breeding Time March Mayhem Rare 4 hours Orator Common 4 hours Volt Common 5 hours Cosmos Rare 6 hours Emberglow Rare 6 hours Clown Super Rare 7 hours Seer Rare 7 hours Genie Common 8 hours Godmother Super Rare 8 hours Bat Rare 9 hours Celestial Super Rare 9 hours Music Rare 10 hours Coral Common 10 hours Neo Bubble Common 12 hours Dark Phoenix Super Rare 12 hours Iridescent Rare 12 hours Mistmoth Super Rare 12 hours Mist Common 14 hours Seafarer Rare 14 hours Tricorn Super Rare 14 hours Ambassador Rare 16 hours Summer Elf Super Rare 16 hours Fortune Teller Super Rare 16 hours Prime Energy Rare 18 hours Trickster Super Rare 18 hours Leo Rare 21 hours Social Super Rare 21 hours Wizard Rare 22 hours Penumbra Rare 25 hours