The best 4-star support in Honkai: Star Rail. Tingyun elevates any hypercarry with her Benediction Skill, granting massive ATK and additional Lightning DMG, then caps it off with her Energy-restoring Ultimate that also boosts the target's damage by 50%, all while remaining almost entirely Skill Point positive.
Deals Lightning DMG equal to 100% of Tingyun's ATK to a single enemy. Low priority skill; using the Skill for Benediction is almost always better, though this gains 20 Energy. Talents can trigger off this to deal additional Lightning DMG if Benediction is active.
Grants a single ally with Benediction, increasing their ATK by 50%, up to 25% of Tingyun's current ATK. While Benediction is active, the ally deals Additional Lightning DMG equal to 40% of their ATK once per attack. Benediction lasts for 3 turns and only applies to the most recent target. This raw multiplier bonus is among the rarest and most powerful damage amplifiers in the game.
Regenerates 50 Energy for a single ally and increases the target's DMG by 50% for 2 turns. At 130 Energy cost, Tingyun's Ultimate is expensive but the payoff is exceptional: giving 50 flat Energy to any ally dramatically accelerates their Ultimate cycling, especially for Energy-hungry carries. At E6, this becomes 60 Energy.
When Tingyun uses her Basic ATK, the ally with Benediction immediately deals Additional Lightning DMG equal to 60% of that ally's ATK to the same enemy. This allows Tingyun to contribute meaningful non-negligible damage between Skill casts, and doesn't consume Benediction charges. An extra deterrent for trash waves.
Tingyun immediately regenerates 50 Energy upon using her Technique. Allows her to enter battle already partway toward her first Ultimate, meaning she can restore Energy to her carry faster on wave 1 and apply Benediction sooner in the opening rotation.
Tingyun excels in hypercarry setups since all her buffs target a single ally. The more your carry relies on their Ultimate and ATK scaling, the more value Tingyun adds to the team.