Originally Posted by
Sir Chaos
I think it was arisart who said Lucy's mom died giving childbirth? She actually died when Lucy was ten, on the same day all the dragons disappeared. I think arisart also said something about Aquarius and her treatment towards Lucy. I think Capricorn, Aquarius and Cancer all made that agreement saying that when Lucy was of age she would inherit the three gold keys her mother had, which is why she started off with those two spirits. As Capricorn said, Zoldeo didn't keep the agreement which is why she didn't have him as a stellar spirit. That's just how I interpreted the chapter.
I also think that there are rarer keys than the gold ones (like Godslayers in relation to Dragonslayers), and we'll eventually meet someone who may actually have the power to control the king of stellar spirits himself. I think this will all occur after Lucy has obtained all 12 keys and she gains the magic capacity to summon all 12 at once. That would be a pretty epic battle imo.
Overall it was a pretty good chapter, and hopefully Grey will be fighting soon. His Static Ice-Make should level up this arc, but I hope that by the end of FT he will have developed both Static and Dynamic Ice-Make forms, since that's the only way he can surpass Ur.