I always buy Jacques every server I play, it’s like nuclear weapons once one person has them you need them for balance.
The hero I have never seen for sale or from a chest is Nora. Only ever seen her on the 4th lvl of the void
Nora was just a week ago in chests. But to be fair they actually realized how dumb it would be to allow players to unlock her that easily and that early in the game and only allowed people to open equipment and points for her(if they already had her)