The Dark Ring is a weapon used by Gagula to summon monsters and improve his abilities. Like the Obu Ring, it is also the most precious treasure obtained through the universe in Gagula. The Dark Ring, like the Obu Ring, extracts the monster's power to make cards for later battles. However, throughout the show, it is clear that the Dark Circle has much more functions than the Obu Ring, and the Dark Ring can use many more cards than the Obu Ring.
The dark ring can be said to be the same origin as the Oubu ring, and the two are like the front and back of a person, the function is the same, and the corresponding power is different. In the whole Obu Ultraman drama, the Obu Ring only uses a few cards, and only uses three Ultraman cards at a time in the theatrical version, while Gagula basically uses a dark ring once in two episodes, and can be fused with the Obu Ring, and even can summon monsters alone, and the Obu Ring has never had such an operation, on the problem of single cards, let's analyze why?
The first possibility is that the number of people used is not the same, the Obu Ring has always been used by Kai, and Kai's strength itself is very strong, he does not need so many cards, and sometimes he can't remember how many cards he has. The Dark Ring will automatically select the person with the dark heart, when the light appears in Gagula's heart, the Dark Ring naturally disappears and is obtained by the Cosmic Witch, who uses the Dark Ring to summon many more cards. So, the Dark Ring may have many users who have created many cards in each of them, so the Dark Ring has a lot more cards than the Obu Ring.
The second is that there are too many monsters in the universe, and there are many monsters of the same species, and only the strength of one monster is needed to be obtained by the Dark Ring and made into cards, unless it is as unique as the Beria Ultraman card, the other monsters are simple. There are only so many Ultramans, it is much more difficult to find an Ultraman's power than a monster, and many Ultramans are still in other universes, and it is even more difficult to find their power. So the Dark Circle is much more than the Ob Circle card.
The third is that there are evil aliens who have made cards, and for aliens who want to invade Earth, the Light cards of the Ob Ring are of no use to them at all, so they will not collect and make Light cards. However, the Dark Circle's Dark Cards are not the same, some cards can be used directly, and the dark power of the cards is also an improvement for themselves. For example, the Mephilas, who have never had a dark ring, have beria Ultraman's dark cards, and there are many evil aliens involved in the production of dark cards, how can the dark ring use more cards.
Not only that, but the Dark Ring can even be used directly to ordinary monsters, and for monsters as powerful as Beria, only its power can be used. And monsters like Bemonstein, whose card power can be used directly, do not need a ring at all. Of course, inspired by Kay's anger, the Obu Ring also successfully used Beria's power, and also directly used Jack Ultraman's cards. In general, the Dark Circle is a little more complicated than the Obu Ring, and it may be that the Dark Force itself is complex, whether it is the function used or the card used, it is much more complicated than the Obu Ring.
And now the dark ring does not know where to go, do not know when it will return, Gagula is also wandering in the universe, so I also hope that Gagula will find the dark ring again, bringing us many unexpected surprises. The Dark Ring and the Obu Ring seem to be of the same origin, but there are many differences. Well, here is the warm anime, welcome to comment attention.