The Flashback Event will have three random mods from popular past leagues activated at once. The collection of mods will persist in that area for one hour and the collection of
poe exalted orb will vary from area to area. After an hour has passed the mods will randomize for each area again. Each area will also have the Bestiary league enabled which means that you can continue to finish your challenges while you compete in the Flashback Event.
The possible league mods that you could see in an instance alongside Bestiary are Anarchy, Invasion, Breach, Ambush, Torment, Perandus, Beyond, Nemesis, Bloodlines, Abyss and Harbinger.
As an example, the Dried Lake could have Bestiary, Breach, Beyond and Harbinger active for one hour and will then randomise to another assortment like Bestiary, Ambush, Perandus, Invasion and then again to Bestiary, Ambush, Beyond, Torment and so on.
That's the difference here. He got lucky with a very cheap craft that meant he could start generating a lot of
poe currency trade through his mirror service. He didn't have to earn a ton of currency before he was able to craft that.
