The only thing that needs to be nerfed (or streamed down) on SCH is Deployement on Adlo.
The problem with that is that it's either "fine" when it's not a crit. (altough you can abuse buff from Largesse, Convalescence and Defiance) or it's simply OP when it's a crit.
The SCH is strong enough even without that and I personally find deployement tactic to be a very boring and clunky spell (boring =/= strong).
I mean, there's only one thing you can deploy and since most of the time we fish for a crit they might as well make (Your next Adloquium will crit and be applied to every player around your target). Problem is, on top of being too strong, (adlo crit spread) it would then become reliable (because that's litterally the only weakness this thing has)

Personally I would really like a rework of Deployement Tactic for 5.0. (or its entire removal)
I'd preffer it to be less potent but more reliable so you can properly make up your strategy around it. And even if we can already do that to some extent (especially during phase transition), spamming Adlo until it crit is just play stupid.

I'm not even talking about how you can abuse lb generation