[Discussion] Celestial Spirit Gate Keys and Magic

There's only 3 known Celestial Spirit Mages left in Earthland. Maybe there is more.

Lucy has 10 Zodiac Gate keys, a handful of silver keys. Plus Stardresses and knowns all the currently known CSM caster spells like Urano Metria and Gottfried.

Yukino has the only other 2 Gate keys and the only other known key as quoted from the manga "rumored to be as strong as a zodiac/rumored 13th to rival the zodiac" and it is bronze colored with a black snake on it. Yukino is written to apparently see the Star Dress, and unrealisticallt instantaneously do it with no training or explanation how to do it after seeing it a second before. Unfortunately.

Anyway.

Then there is Hisui, who has no Zodiac keys, can make gate keys that can close corrupted Zodiac Spirits, and basically taught Lucy how to use the Gottfried spell, and is strong enough to use the Zodiacs partily as shown during GMG when she used them to open the door.

(Since not every Celestial Mage was said to be capable of even using a Golden Gate Key because it requires a ton of magic to even do so)

Kinda would like to see the Celestial Spirit Realm shaken up, with their time zone changing to allow for more gate keys to be made since apparently only Golden Gate keys are rare because there is only ever one of each in existence, and all other keys have more than one copy with some also having so many copies they are mass produced like Plue.

But I wonder if since Hisui can make the eclipse gate keys, and Plue is mass produced and found in shops easily, can this be done by human mages? Because the Zodiac gold keys seem to only be allowed on Earthland because of the Spirit King since it was him who remade Aquarius's key and sent it back to Earthland.

Also I'm curious how the 88 Celestial Spirit keys ever came to be in the first place!