After some discussion with a friend about the state of healers (both healer mains) I had an Idea how to make her R1 more useful and give her some actual lvl 10 power:
Let the crystal heal it’s target based on the amount of enemies hit with it’s damage, forcing the enemy to either retreat to prevent a potential full heal on a tank (and also prevent damage) or let them eat it to shortly take advantage of the 4v5 but at a cost. Level 20 could then shield all allies within the crystals area based on enemies hit.
As a cherry on top the crystal itself could count as terrain, similar to Hoggers ability.