I've just come back to the game after many years and now dragons have stars? Could someone people explain what this is and how to get them? I've figured out just about everything else, except this.

Thank you

@Darron-Lee-Fuller Since you were gone, the Tree of life has been added. With this, you can recall dragons(if you have two of them) and earn orbs of that dragon. Then, with them orbs you can empower(earn stars) for your dragons and increase their hp and attack stats. There are other ways of getting orbs, like orb chests in events or the daily calender, or the missing dragon rescue(another new feature) and the arenas. See Bett's post if you have any further questions.

@Hồ-Lộc Don't randomly @ people as it is considered spamming and can get you banned

@darron-lee-fuller Check these for informations:
Tree of Life: RECALL your Dragons! FAQ's - https://forums.socialpointgames.com/topic/7224/soon-tree-of-life-recall-your-dragons-faq-s

Tree of Life: EMPOWER your Dragons! FAQ's - https://forums.socialpointgames.com/topic/7225/soon-tree-of-life-empower-your-dragons-faq-s