I play pretty much exclusively healing warlock and Heal Clip feels pretty meh to me right now. After a good bit of testing I've never gotten it to activate Ember of Benevolence, not sure if that's a bug or by design, the radius is rather small especially compared to the Void Titan's healing on Volatile explosions, which heals about the same but much more often, and waiting for the reload animation for the healing to activate means half the time the person I'm trying to heal with it is dead or moves outside of the tiny area of healing. If they made the healing area about 5 times larger and made it work with Ember of Benevolence it would be a lot more viable. Also generally as a healer I really still hope they get rid of tracking on the Healing Grenades, half the time I throw them to someone who needs them another player runs in front of it and it tracks to them. They were fine without the tracking. At least then I could control where the grenade went.