Thread:Redfork2000/@comment-30384301-20180707030921/@comment-26888167-20180910130607

1) No. The main castle in Canterlot belongs to Princess Celestia, who is the main ruler of Equestria, together with her sister Princess Luna. Twilight has her own castle in Ponyville.

2) Well, just as you noticed, they work differently when used by different people, but it's mostly due to conditions regarding friendship. Sure, the elements of harmony can be powerful when used by a single character, such as Red Fork, but they're most powerful when used by a group of friends that has the spirit of every element in them. That's why the Mane Six can use the Elements of Harmony to maximum power. They each represent the spirit of each element of harmony, and their friendship is strong enough to unleash the element's ultimate power.

However, other characters that have enough experience in magic might be able to use the elements as well, though it won't be as powerful as with the Mane Six. For example, Red Fork, Dark Shadow and Princess Celestia have all used the elements of harmony before, but of course, none of them have used them to the potential the Mane Six have.

Also, since the Mane Six represent the spirit of each element of harmony, they can also regain control of the Elements of Harmony if they've fallen into the hands of evil. If they're up against a villain that has stolen the Elements of Harmony and is using their power, they can still absorb the power from the Elements and use it against the villain. Of course, this would require that the villain has the Elements of Harmony with him/her during the fight.

Finally, the Elements of Harmony are the most powerful source of magicin Equestria, and can be used to power magic-based machines. You've probably seen Bright Spark do it several times. Even one element alone can multiply the power of a machine.

3) Well, besides the Mane Six, other ponies that could be up to defending Equestria could be Princess Celestia and Princess Luna, wihch are the royal sisters and rulers of Equestria. There's also Princess Cadance and Prince Shining Armor, though they mostly look over the Crystal Empire, another part of Equestria. Finally, there's several OCs of mine that should be in Ponyville and might be able to put up a good fight as well, such as Metalshoe Jet, Soda Blast, Sneeze, Whistle and Corn Cob.