stealth_nsk
Deity
This was how it worked in Civ 5 too, the trait was attached to the leader and the other unique stuff was attached to the civ.
Yes, that's why we think the game will have 1 leader per civ. However, in Civ5 there was strong synergy between leader abilities and civ UU/UB/UI. If in Civ6 the uniqueness is really tied to leader only, this could be a different story.
P sure the civs have 3 uniques (uu, ui, ua) , and each leader has their own time sensitive unique trait?
It looks like civilization have 2 uniques and leader have 2 uniques, so: America has UU and UB, its leader has UU and UA; China has UU and UI, its leader has 2 UA. But that's mostly speculation.