catwho wrote:
No. All of them are "authorized" to appear at will without being summoned if they determine that the summoner is in critical danger. We have seen Horolgium the clock do it multiple times, as well as Loke, Virgo, and Capricorn. I believe even Aquarius could do it if she really felt like it, but she doesn't like Lucy very much.
The issue is one of magical power - when Lucy summons them, she draws on her internal magic to "open the gate" which allows the stellar spirit to arrive in this plane at full strength. At first, Loke was the only member of the Zodiac who had enough power to open his gate and arrive on Earthland with enough power to fight, but the others have grown in power as their relationship with Lucy strengthened.
The issue is one of magical power - when Lucy summons them, she draws on her internal magic to "open the gate" which allows the stellar spirit to arrive in this plane at full strength. At first, Loke was the only member of the Zodiac who had enough power to open his gate and arrive on Earthland with enough power to fight, but the others have grown in power as their relationship with Lucy strengthened.
You win this round!