I got Droconos forst time i bred two pure and nirobi the third time, pure and pure again. each time I breed pure hybrids I get zombie or something (breeding pure dark with pure metal) It is somewhat random.
I read, elsewhee on this site, that breeding two legends is less likely to get a legend than breeding to pures/pure hybrids.Â
Each time I breed pures in breeding mountain, I get a pure egg, each time in ultra tree (on my phone, no bonus) I got legend.