I have tried this build a few times in RA and it works surprisingly well. I'm currently on a 27/2 win streak and all of my wins were flawless except 1.
I'm playing an N/Rt because I don't really like E-Management on Ritualists.
Here are my attributes:
Soul Reaping - 8 + 1 + 1
Communing - 11
Restoration Magic - 11
Here is my skillbar:
Displacement - Nice blocking spirit, just use it as soon as it recharges.
Union - The damage mitigation is also a pretty nice addition to this build.
Life - This is the skill you will be spamming a lot, it will fuel your energy and your last 2 skills. And it will heal, of course.
Weapon of Remedy - I only used this skill a few times and after my first run I replaced it with Preservation, but yeah, my first run was ^^^ that run. If you decide to take Preservation instead, use it the same way as Life.
Vital Weapon - Another really important skill, just keep this up throughout the game unless you decide to take Weapon of Warding.
Wielder's Boon - Your main heal and mostly a filler due to it's fast cast.
Mend Body and Soul - Heal and Condition Removal.
Spirit Light - For whenever you need a big heal.
Have fun farming Gladiator points, I got 2 in a few tries and I will be doing this a lot in the future.


