Board Thread:Speculation House/@comment-35623833-20181203014317/@comment-4141313-20181218181244

Here's how I see it.

The Relic of Choice we know is a crown. We know the King of Vale used to be one of Ozma's incarnations, and during the Vacuo Campaign he wielded a scepter, a sword, and wore a crown on his head. The sword is implied to be the Sword of Destruction, while the Scepter appears to be Ozma's Staff. As for the Crown, the crown is most likely the Crown of Choice.

We also know that when the campaign ended, all the kingdom leaders, even the allied Vacuo, kneeled before the King ready to pledge fealty. Only for the King to instead bring negotiations to Vytal and end the war. With the negotiations, the four academies were then crafted and led by four of his closest allies.

We also know that the true purpose of the Academies was to hide the four relics, and keep them under the protection of future and acting huntsmen.

So, what I think is that the Relic of Choice doesn't take away the freedom of choice, rather it influences the choice. The Crown most likely gave Ozma a charisma boost, which in turn made it easier for him to persuade others. The fact they had to discuss it at Vytal at all shows he can't command them period, he can only influence them. The limitation is probably that the effects of the Crown only last so long as the influences is wearing it, and provided the influencer is in a specific range of the influencee.

So what he did was bear the crown, and persuade them to stop fighting. They listened, and while at first wanted to obey him, he instead had them convene at Vytal. Once he left the proximity, the effects ended, but they had to go to Vytal still lest the restart the war and risk the Vacuo campaign all over again. Then at Vytal, he offered the idea of the academies, and gave enough sweet talk to convince each leader to accept it, the crown making it easier for them to agree with him.

Long story short, it influences choices, making it easier to have others agree with your choice.