Board Thread:Dragon Story Breeding/@comment-1.38.27.108-20130309162948/@comment-5089372-20130309195054

The breeding boost gives an increase in probability of a rare dragon outcome. It does not guarantee a rare dragon outcome though.

Prices vary for everyone right now from coins to gold or even food. Teamlava has not commented on this yet so it is unknown at this time why people have different prices.