It makes sense - It is similar to how I picture the "RNG" as far as per-player loot. My version is slightly different: Loot A: Ghorn, Thunderlord will drop often - highly unlikely to get IceBreaker as a drop Loot B: Plan C & Truth - highly unlikely to get Ghorn as a drop Loot C: Ghorn, Ice Breaker - highly unlikely to get thunderlord as a drop (continue on with different combinations of exotics that drop often for people) You create your character & upon that character creation/birth, your guardian is assigned one of these loot tables. You are born with your assigned loot table, and it will be there forever. Xur is around to calm the masses when people get really worked up...