OHHHhhhhh...I didn't realize that all of Wishful Heart's storyline took place BEFORE Luna went to the moon! Or...perhaps she went back in time? I suppose that's possible as well, if this takes place before the Season 3 episode where the Crystal Kingdom reappears. Either way, it's sweet that she created the Crystal Heart.
Yes a back story for Sombra awesome! I like the whole tie in with the crystal ponies very ingenious. This is really good so far keep it up! BTW does that one pony with a beard have a holly berry cutie mark? Wow perfect for Hearts Warming Eve.