Originally Posted by
Saiyoran
This is not how this works at all.
Set dungeon to mythic difficulty > walk into dungeon > complete an untimed mythic dungeon, just like a mythic dungeon on live.
From that mythic dungeon, you have a chance to loot a Mythic Keystone from the last boss. That keystone will say Level 2 and the name of a dungeon. Now you go to that dungeon. Place the keystone in the pedestal and hit Start. No ilvl requirement for any of this. This puts you in a timed Mythic 2 dungeon, where bosses no longer drop loot. Finishing the dungeon within the timer awards a chest that contains 840 gear. Finishing the dungeon very quickly can award multiple chests. The gear can be warforged/socketed/whatever, with a random chance for higher ilvl. You also get another Mythic Keystone that says Level 3 (or 4-6 if you completed the dungeon very quickly) and lists another dungeon. Rinse/repeat. The base ilvl for gear that drops from the chests is supposed to scale up with higher levels, but often on beta you're getting 840 gear from Level 3 and 4 as well.
On Tuesday, when the weekly reset happens, the chest in your order hall will contain a piece of loot. This piece is random stat/random slot and its ilvl is based on the highest level Mythic dungeon you completed the previous week, starting at 840 (level 2), and increasing by 5 every level. So if you completed a Level 6, your order hall chest will contain one piece of 860 ilvl gear.
There is no requirement for your gear to enter a mythic dungeon. You can complete a base mythic at 800 ilvl if you're willing to do that. The "ilvl cap" of the gear that drops is currently unknown, but from recent interviews looks to be the same ilvl as Mythic Raid gear of the current tier (probably somewhere around 900-950, which is a broad range but I don't personally know raid gear), which will drop in your chest from high level mythic completion.
If you don't make the timer in any dungeon your keystone is not replenished. You still get a chest at the end and can get a chest in your order hall at the end of the week, but you have to run the dungeon again faster to get to the next level keystone.
Also currently on live you don't have to have any ilvl to zone into mythic dungeons. You can breeze through them at 640 ilvl if you want to, they're pretty faceroll and don't require any specific gear/comp setup to enter or complete.