Guide
How the kit works
Before a fight, use Untethered Glimmer Sails Far to activate Decalight Unveils All at the start of battle without spending a Skill Point. The Skill creates a Zone for 3 turns and gives every ally Elation equal to 20% of Yao Guang’s Elation. Its duration decreases at the start of her turns.
Keep the Zone active, then use Whistlebolt Sings Joy when you do not need to refresh it. Both Basic and Skill give her 3 Punchline. Basic also regenerates 30 Energy and hits the chosen enemy and adjacent targets.
Hexagram of Feathered Fortune gives her 5 Punchline and immediately gives Aha an extra turn. That turn takes a fixed 20 Punchline into account without consuming it, and gives all allies 20% All-Type RES PEN for 3 turns.
While she holds Certified Banger, Behold Wherever Light Unfolds triggers Great Boon after an ally attacks. It deals 20% Elation DMG of the corresponding Type to one random target hit. An attack that consumes Skill Points triggers it twice. If the attacker has less Elation than Yao Guang, Great Boon uses her Elation for that instance.
Let Thy Fortune Burst in Flames applies Woe’s Whisper for 3 turns, making enemies take 16% more DMG. It then deals Physical Elation DMG to all enemies and five further instances to one random enemy. Poised and Sated restores 1 Skill Point after Yao Guang uses an Elation Skill. The supplied kit does not say how she obtains Certified Banger, so check its in-game description rather than assuming a trigger.
Build and why
Use 4 pieces of Diviner of Distant Reach. Its 2-piece bonus gives 6% SPD, and its 4-piece bonus gives CRIT Rate based on SPD before combat: 10% at 120 SPD or 18% at 160 SPD. The first Elation Skill used each battle also gives allies 10% Elation. For the planar set, Lushaka, the Sunken Seas gives 5% Energy Regeneration Rate; put Yao Guang outside the first team slot to give that slot 12% ATK. Sprightly Vonwacq is an alternative with the same Energy Regeneration Rate and a 40% action advance on entering battle at 120 SPD.
Choose SPD on the feet, Energy Regeneration Rate on the rope, and either CRIT DMG or CRIT Rate on the body. HP Percentage or DEF Percentage works on the sphere. For substats, follow the game’s order: SPD, then CRIT DMG, then CRIT Rate. Amaze-In Grace makes SPD especially useful: at 120 SPD it gives Yao Guang 30% Elation, plus 1% for each SPD above that threshold.
When She Decided to See is the first weapon choice. It gives 18% SPD, and its effect on entering combat grants allies CRIT Rate and CRIT DMG while increasing her Energy Regeneration Rate. It also restores 15 Energy at the start of each wave.
For alternatives, consider Until the Flowers Bloom Again or Today's Good Luck. The former gives CRIT DMG and Energy Regeneration Rate and increases enemy DMG taken after an Elation Skill. The latter gives CRIT Rate and builds Elation after an Elation Skill. Separate guides place each ahead of Mushy Shroomy's Adventures, though they do not directly compare the two. Mushy Shroomy's Adventures remains an option for its Elation and increased Elation DMG taken by enemies.
Leveling priority
Follow the game’s order: Hexagram of Feathered Fortune first, then Let Thy Fortune Burst in Flames, Decalight Unveils All, Behold Wherever Light Unfolds, and finally Whistlebolt Sings Joy. The Ultimate brings the Aha turn and team penetration, while the Elation Skill damages enemies and makes them take more damage.
The Skill’s Zone supports the whole team, and the Talent adds damage after attacks while Certified Banger is active. Basic is useful for Energy and Punchline even though it comes last in the leveling order.
For maximum ascension, gather Credit, Invasive Clot, Whimsy Wax, Dreamweave Steel and Lucid Awl. Maxing all skills also needs Credit, Tracks of Destiny, The Fluffy Hand-drawn Storyboards, The Fluffy Serialization Memorial Issue, The Fluffy Collector's Edition, Vanquished Flow's Reticence, Whimsy Wax, Dreamweave Steel and Lucid Awl.
Eidolons worth it
For an early stopping point, consider Chuckle Chimes Where Jade Falls. It raises the fixed Punchline considered during Aha’s Ultimate-triggered turn from 20 to 40. It also lets allies ignore 20% of the target’s DEF when dealing Elation DMG.
Blind Arrows Guided by Feathers is another option for team support: while the Zone is active, allies gain 12% SPD and 16% Elation. Ferried Along the Astral Arc is a later option: allies’ Elation DMG merrymakes by 25%, and Yao Guang’s Elation Skill multiplier increases by 100% of its original value.
Threads of Fate Colored by Plumes raises allies’ Elation Skill damage during the Aha turn triggered by her Ultimate to 150% of the original. The third and fifth nodes raise skill levels instead of adding new effects. You can stop before them if you want an earlier stopping point, but reaching E6 requires every preceding node.
Teams
Pair Yao Guang with an Elation damage dealer who can use the Elation from her Zone. Sparxie and Evanescia are options named by the guides. Trailblazer (Elation) is another option. Yao Guang brings All-Type RES PEN and the damage-taken increase from her Elation Skill to these teams.
Attacking allies can benefit from Great Boon while Yao Guang has Certified Banger. Attacks that spend Skill Points trigger it an extra time. Archer is another attacker worth considering. Do not assume the extra damage counts as another attack: the Talent explicitly says it does not.
Common mistakes
Do not let the Zone expire unnoticed. Its duration drops at the start of Yao Guang’s turns, so check it before choosing Basic instead of Skill. Use her Technique before a battle when available to start with the Zone without spending a Skill Point.
Do not build only CRIT and neglect SPD. SPD feeds her Elation passive and helps meet the Diviner of Distant Reach thresholds. Check those set thresholds using SPD before entering combat.
Do not treat the Ultimate’s fixed Punchline calculation as spending 20 Punchline. Also, Great Boon needs Certified Banger and an ally attack; it does not trigger merely because an ally uses any ability.
