Mastery: Lightbringer beacon healer built around Holy Shock, Infusion of Light, and Holy Power spenders. What the kit brings to Solo Shuffle, the fundamentals for the role, and current video coverage.
Your first movement should preserve line of sight, not chase a teammate you have never played with into the middle of the map.
Holy Shock on cooldown when it has healing value, then use the proc to solve what is actually threatening. Burning it on a harmless dip leaves you empty for the go.
Freedom, Protection, Sacrifice and Divine Shield answer identifiable offensives. In shuffle, a trade your team can see is worth more than a plan that needs coordination you do not have.
This is an activity playbook, not a static build claim. Start with the current class guide, then change talents and gear around your group, encounter, and rating bracket.