Thanks so much, tried it and work!! Made an account just to share my experience. Takes a few hours to farm blood shards to gamble for puzzle rings at 31, might get 1 roll for every 1400 shards used if I'm lucky. I did the vaults at lvl 10 but I've also read some people doing it at level 7? That way they can still use the same character to do vaults until it reaches level 11 avoiding remaking new character too often?