User blog comment:Jens Ingels/Breeding Legend Dragons (the compair array list)/@comment-93.40.111.202-20130510104228/@comment-3271569-20130511002619

Like I said the system is outdated so they probaly fixed the error. I think the progress continues now: (example Soccer / Cool Fire)

Stage 1 Stage 2 (unlike the old system the process continues) Stage 3
 * Ice + Flame (error- Ice Elemental add to the list)
 * Ice + Ice (ice elemental)
 * Flame + Flame (Flame add to the list)
 * Flame + Ice (cool fire and soccer add to the list)
 * Error no dragons

I'm not so sure for ice + ice since the opposite it detected in the first line of the process. But that isn't really an problem since the error automaticly generate an ice elemental.