Replying from mobile so I apologize ahead of time. After I moved on to Dyna - Vulk and Bubu, after getting 5/5 TE, relics that I was trying to get in windurst began falling like candy in vulk and bubu. I gave Bastok a shot only to get same results as windurst. But so far in 4 hours at each vulkurm and bubu I've gotten every relic/accessory. To answer the question if I had a piece or two stashed away, no I did not. So at this moment it is my belief that the 3 main nations are just currency farm and the dream zones are relic farm.