Talk:Game Updates/@comment-29910822-20170923025901/@comment-4738639-20170923040423

You only need to hatch the first one with one of the traits. After you have one hatched any other one bred in the rift with a trait will have its trait added to the possible traits the first one hatched has accumulated so far.

Example: Hatch Poison Dragon with fire trait, then breed Poison Dragon with air trait, release Poison Dragon with air trait, check back to the Poison Dragon with fire trait (possibly after reloading the game) and it should have both fire and air traits unlocked to be switched around at the Transfiguration Tower.