Good evening

I'm currently leveling up my first healer class which is a Scholar as you can see.
One thing that I don't know is what attributes do I need on Scholar?
What I recently read was that healers are supposed to deal dmg besides healing (I never looked at my healers when doing dungeons, I just focus on the mob around the party since I've played all 3 Tank classes), is it still a thing? What can you tell me about this?
Also I would like to know what cross-class skills are recommended for Scholars.
And if it's possible, it would be great if someone can post a guide.

Thank you in advance