For solo scenarios and DA, I used to run them quite happily using Cruel Delight, Vigour and Nurture for healing.
However, post-patch all of these have had their effectiveness reduced by 50% or more, and there aren’t really any viable alternatives when you still need to do decent damage and interrupt.
Consider DA gatekeeper.
You need 2 interrupts, so that’s gadget and one ability.
You have your basic.
Power attack for each weapon, and you can’t make either a heal without losing too much dps.
Your elite might technically also be an interrupt, but you can’t save it just for then without again losing too much dps.
And that’s it, your bar is full. No room for an additional heal. The fury gimmick means you effectively have one less slot. The fist weapon that automatically consumes fury is not a realistic option because having your interrupts and self-heal ability abruptly be replaced is a great way to get yourself killed.
I don’t really care how this is remedied, but I think it’s pretty inarguable that something needs to be done.
The simplest way would be to give Nurture the +300% self bonus is one way, possibly overkill but it would work. Excellent survivability for soloing, hopefully wouldn’t make it too powerful for tanks because of their larger HP pool. Even +100% would probably make it worthwhile again. This seems reasonable because of the slot shortage for fist, and by having it on a basic it can’t be abused by tanks taking fist as an off-hand.
As it stands, it heals less damage per tick than a DA boss’ default attack causes, and even 100% healing AA only doubles its effectiveness over 0%.