Dear Princess Luna,
I'm truely sorry Princess Luna, I should have told you before what they were.
The Keyblade is a weapon that looks like a key but it is also used as a sword.
It has immesurable power and is capable of opening any lock in the universe, no matter how powerful, or vice versa.
It also has diffrent looks. Whenever I change my form my cutie mark changes to the keyblade I can wield.
I was wondering if you could teach me diffrent sword techniques and diffrent powers I have.
I ask of this from you,Princess Luna, because I was told that you were extreamly powerful and wise in the arts of fighting!
I also Hope that you enjoy your time at the Grand Galloping Gala that is coming to Canterlot!
Unfortunatly, I can't come to the Gala as I have no invitation to it.
I might spend the night of it practicing my keyblade techniques.
I hope to hear more from you Princess Luna!
Your Faithful Student,
Storm Spark