The artifact Aaron is talking about is the artifact held by Highkeeper Ra - although that artifact is not in Rai's hands now, it is Shield of the Highkeeper.
This shield is actually a key that opens four Elemental Plane. Aaron believes that in order to calm down the turmoil of the elements, it is necessary to rely on the power of that key. However, this key is still in Pandaria, and the fog shrouding outside Pandaria has not yet dissipated.
In fact, after Cataclysm, the relationship between the four major Elemental Plane, Emerald Dream and Azeroth has been deepened a lot. At least now the shamans are trying to open up the relationship. Entered the passage of Elemental Plane, but Aaron doesn't just want the mortals of Azeroth to enter Elemental Plane, he wants to return the elements to reality.
This is not the whims of Aaron, but the birth of Azeroth requires the power of the elements. Although the elements once almost became the force that destroyed the planet, the elements are still closely linked to the fate of the planet. Just like the four elemental kings of Outland, they were also greatly affected after the destruction of Draenor.
The reason why Aaron came to Ysera was that he hoped to use her to convey some information to certain entities in the fog, so that they could open a channel from the fog.
Of course, in addition to Ysera, Aaron also contacted Freya in advance, the guardian of life, Ysera and Aaron finally met outside the fog of Pandaria, and here Aaron told them what two generations of life guardians who were in charge of Emerald Dream needed to do.
Aaron hopes that they will contact the four Wild God named August Celestials who have been living in the fog. Since Pandaren's emperor Shaohao used fog to cover Pandaria, this fog not only affects reality, but also reflects on Among Emerald Dream, this caused the four players August Celestials to lose contact with other Wild God. Now Aaron needs to reestablish this contact and use them as a bridge to transmit information to Shaohao, so that the other party can open a channel for him to get Shield of the Supreme Keeper.
Before this, Ysera had tried to communicate with the four August Celestials, but it was actually very difficult to do so. First of all, Emerald Dream was affected. There was no way to contact the four August Celestials who had been disconnected from Emerald Dream to some extent, and Pandaria was located too far away. Ysera had to be busy dealing with the Emerald Nightmare that pervaded Emerald Dream.
As for Freya, when she was trapped in Ulduar, she didn't even want to have contact with Emerald Dream, which might cause Yogg-Saron to use her to spread the pollution spread into the dreamland. After regaining freedom, Freya also tried this aspect, but because he had too many things to be busy with, he did not invest too much energy in this aspect. After several failures, he temporarily put it aside.
But now they are outside the fog. Freya and Ysera have joined forces to transmit some information into the fog and establish contact with the four August Celestials. This kind of contact does not need to transmit too much information. It only needs to make the demigods in the fog realize that someone is looking for them. It is enough.
Originally, Aaron, as a Wild God, could actually provide some help in this regard. However, Aaron was not proficient in mastering this power from nature and could only watch from the sidelines.
Finally, Aaron saw a snow-white tiger appearing outside the fog, and expressed his various emotions to Freya. Aaron was the first to respond to Xuen the White Tiger. It's not surprising at all, after all, their current location is in the northeast corner of Pandaria, which is very close to Xuen's residence Temple of the White Tiger in Pandaria.
After the first step was successful, it was not difficult for Aaron to convey their wishes to Shaohao through Xuen. After hearing the brief message from Xuen, Shaohao chose to emerge from the fog and talk directly to Aaron.
After learning from Aaron about all the changes that have taken place in Azeroth over the past ten thousand years, especially after the events of the past twenty years or so, Shaohao chose to open the fog and let Pandaria reintegrate into this normal world. In a world that is undergoing drastic changes, just like what he thought in the official history, Shaohao believes that this disaster-stricken world needs the power of Pandaria, and many races of Pandaria also need to re-understand the world.
However, Aaron prevented Shaohao from fully opening the fog that obscured Pandaria. He knew very well that there was a kind of strange power under Pandaria's land, and Alliance was not yet ready to deal with this power.
At this moment when N'Zoth begins to struggle to his death, Aaron does not want Y'Shaarj's heart sealed underground in Pandaria to cause new troubles. Before solving N'Zoth, Aaron hopes that it is better not to let Pandaria be fully exposed to the eyes of the whole world for the time being.
So Shaohao just opened a passage in the fog to facilitate Aaron and Ysera Freya to enter. Under the guidance of Xuen the White Tiger, Aaron and the others finally arrived at Timeless Isle.
This is the last place where Shaohao lived before he transformed into the fog, and it is also where the four August Celestials usually gather. Here Aaron showed them the changes that have taken place in the outside world, and finally expressed his hope that they would help him get Shield of the Last Keeper.
Aaron remembers that this Shield of the Supreme Keeper and the matching Fist of Ra-den seem to have fallen into the hands of Xuen the White Tiger, but after historical changes, people are not sure whether this is still the official history.
But the good news is that Shield of the Highkeeper is indeed in the hands of Xuen, but the bad news is that the shield sealed itself after losing its owner.
It seems that Highkeeper Ra's will has affected the state of his shield. In the hands of Aaron, this shield looks like a very ordinary shield and does not show the power that an artifact held by a guardian should have.
Aaron had seen Thorim's weapon that contained thunder and storm hammer, and had had close contact with Odyn's weapon, not to mention that he had two artifacts that once belonged to the guardians. Neither of them was as strange as the state of the shield in front of him. It clearly contained powerful power but did not show it at all.
Aaron thinks that if you want to awaken this shield, you may still have to find Highkeeper Ra, so that Titan Keepers, who has sensed Pantheon's death, can cheer up again. Aaron believes that the fact that Azeroth has awakened will change Reina's decadent will for tens of thousands of years.