

When Loki is one of Karen's spirits and he switches with Aries, he says he is
not an ordinary spirit so he can switch with them and summon himself on his
own but other spirits seem to have no problem summoning themselves.

If this was the case just for the Zodiac Keys, I would be "ok" but Horologium
will show up without Lucy summoning him too whereas he is a regular spirit.


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2017-06-05T00:12:07.840
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fairy-tail
How come it seems like all Lucy's Spirits can summon themselves?


Loki and Aquarius are strong. They can even help others spirits. The celestial
spirits have bonds strong enough with Lucy than any other celestial wizard
that fuel them some strength to do it for a some time. Only small amount of
time because apart from Loki I have seen none who had stayed for long. Also
there was a time when celestial God himself appeared. It took toll on Lucy
than with most of spirits. So it also can happen that they use her strength.
Just speculations....


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2017-07-09T12:07:42.293
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It is mentioned in the series that since Lucy and her spirits share a _strong
bond_ , the spirits can summon themselves without Lucy initiating it. It
doesn't matter if it is a zodiac key or a silver key.

Moreover as her magic power increases, the time that they can remain in the
real world also increases.


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2017-09-07T16:46:57.510
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They all have magical power. It's like chakra in _Naruto_. It can't be used a
lot, but also can't be overused. Their magical power can help them go through
the world. Helping them enter the world takes a value amount of there so
called magical ability. Therefore they like Lucy as their master to save her
or do it at their own will to be there. Even Aquarius sometimes.

Other than Loke, he had no master. Before the time, he just has a lot of this
power to enter the world. As I said, it all goes to waste for too long. I
don't know if Loke had used his power on the ladies or if he just gets it.
That's another question to be answered. Other than that, the answer is a sort
of magical power, or if you want to say chakra.


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