Both supports are extremely oppressive to the tank to the point where its simply not fun to play against either of them.

I suggest giving Ana’s sleep dart a damage reduction so you dont get slept and immediately melted by her team.

For Discord Orb I think changing it to a damage reduction tool would be better, Zens team still gets a fair bit of use out it and the target still would want to retreat to get rid of the orb and get their full damage output back