Everything helps. Limber/DoF are not godmode, and they aren't always up. I know I had to tank a lot in adonis teams, because there aren't usually better DDs around than a twinked shade.
Getting agg on shade at tl5 doesn't equal death in a team with a healer. We can tank, and evades make it easier.
But why would you know anyway, it's been so long since you actually played/leveled a shade I'm sure.