I thought Quria was gifted to Savathun? Doesn't make sense as to why it is up there. I would like to see a Vex World Mind, as it, all of Mercury or at least a large chunk or it, as the enemy. The raid would be a decent through down to Mercury's Core, fighting first an Axis Mind similar to the Templar, then a jumping Puzzle, then defending an Elevator from Future Vex that brings you down to a giant Arena type area. Here you would face a Gate Lord boss who would charge you. The walls would damage you and he has an immunity shield at 50% Health. At 50% Health he will start to charge you. When he rams into a wall, you have 20-30 seconds of DPS. From here you will travel through the Vex Gate Network and end up in a Labyrinth. Each Guardian gets their own personal maze that shifts and moves if you take too long. When you reach the end you activate a bomb that does 1/8th of the health of the next boss in damage. You want to all finish near the same time because the boss has an Immunity shield until everybody is done. It doesn't attack during the Shield, but waves of enemies spawn. Once you everybody finishes their Labyrinths, proceed to fight the Stationary Cyclops-like boss as normal. From here you go even further down to the core which is a massive hollow space with 0 Gravity and a flight mechanic. The entire area is obviously pitch black except for your Ghost light and at the center is a massive, Oryx++ sized Confluence. The confluence spawns a wave of 6 Oracles every 30 seconds, no cleansing mechanic for 1st half. To damage the boss you need to kill special Harpies that will randomly travel the map. When you kill one it will randomly infuse 1 player (20% to be player who killed it, divided equally among the rest) to send into the Vex Gate Network. From here the player will need to defend a Portal Opener (like in Atheon VoG) and allow one other player in. They will then proceed to fight their way to a conflux. One player needs to pick up an Undying Cube and leave the portal. From here they shoot the Vex World Mind to take out its shields. Doing about 1/3 of its health every time, ideally. The person left inside the Gate Network then gets teleported out. Repeat twice more.

It's conceivable that Quria could somehow escape Savathûn. When Oryx took Quria, he left him with some will

I somehow don't see a limited Vex Mind that couldn't outsmart Oryx(Who's sphere is knowledge and understanding) to be able to trick Savathun(Who's Sphere of influence is Cunning and Trickery)