Simple concept: Take Orbs for some dragons and move them to other dragons.
Can only work between Dragons of same rarity & if Orbs have been previously obtained.
Example 1: I have 20 Orbs of High Queen. I have 35 Orbs High High Fenrir and 45 Orbs of High Snow. I don't have High Queen. I have High Fenrir and High Snow. I can just transfer the Orbs over from those two to High Queen, wait time included.
Example 2: I want High Fighter. I don't have any Orbs of High Fighter. I cannot transfer Orbs from any Heroics to High Fighter until I get some High Fighter Orbs.
Example 3: I have 90 Orbs of High Purity. I have 30 Orbs of Yggdrasil. I can select 10 Orbs of Yggdrasil and transfer those to High Purity.
Originally, I did think about being able to transfer different rarities of orbs to other rarities, like taking 560 Common Orbs and transferring them to 30 Heroic Orbs, but I feel that would be too much, especially since people would spam-recall Terra Dragons until they had enough to Transfer Orbs to other rarities of dragons.