What mechanics would you like to see (more often) in casual/extreme content ?

Hello guys.

What kind of mechanics would like to see more often in trials or even casual content ?

For example :
- A boss that deals a permanent DoT for the group. Of course, strong enough to force me to use more than just medica 3. (poisoned ground, reflect percentage of damage done, ...)

- Random mini-tankbuster on dps/heal players so tank use their short mitigations to protect someone else.

- Multiple targets to destroy if we want to (temporary) debuff the boss.

- Two bosses and a strong add (striking weaker than the bosses) that should be tanked by the tanks and a dps. (because both give strong buff to each other)

I don't do savage/ultimates so I don't know if those mechanics exist in those difficulties.

And you, what would you like to see ?

People have been asking for mechanics like that in Savage/Ultimates instead of in/out/stack/spread and it seems like not much has changed. The only place I see it coming back is maybe exploratory zone content.

Casual/extreme content are defined by their complete lack of requiring players to know their job kits. They seemed to have made up their mind on this matter and you'll have to play a game like WoW if you want to see stuff like that.