I hadn’t researched it/ built it as it was only there for like 30 minutes.
What I’ve found from some stuff from people who did research & look at it quickly:
Stage 1 = common heroes
Stage 2 = common troops
Stage 3 = uncommon heroes
Stage 4 = uncommon troops
Stage 5 = rare heroes
Stage 6 = rare troops
Stage 7 = trainer heroes
Stage 8 = epic heroes
Stage 9 = epic troops
Stage 10 = Legendary Heroes
I don’t have the costs or the chances on additional stuff & don’t want to post that info even if I did have it (being pre beta it’s not worth the effort to type up).
The stages tho I think will be pretty fixed tho…