I loved reading this, you should ask the GU team to add this as lore. For GU to expand I believe they really need to create these backstories for the significant characters(Cards) so people can relate to them. Something League of Legends did in spades, look where there are now.
I'm glad you enjoyed these stories. They are owned by the GU team, all I do is read and tell them in my own way. You can find the link to the original stories from the post below.