Guide
How the kit works
Enter with Illuminated Manifestation to restore 40 Sentience. It also makes Closing Refrain (skill) available for 5 seconds. Cast it to enter Lunar Cycle and restore another 25 Sentience. Outside Lunar Cycle, the third Moonring Basic Attack or the first use of Foresight Fugue can also make Closing Refrain available.
Ebb and Flow starts Lunar Cycle in Half Moon. Hit enemies with Moonring attacks to build Sentience, then press Jump to switch to New Moon and the Moonbow. New Moon attacks and Arc Beyond the Edge (skill) spend Sentience to increase their damage multiplier, heal nearby teammates and restore extra Concerto Energy. Switch back to Half Moon when you need more Sentience.
Beneath Lunar Tides also starts Lunar Cycle and restores 60 Sentience. In New Moon, Moonbow Basic Attacks and Arc Beyond the Edge count as Resonance Liberation DMG. Arc Beyond the Edge has two initial charges and can also help Iuno recover after a hit.
At full Concerto Energy, use Absolute Fullness (forte). It ends Lunar Cycle, heals the team nearby and creates a Full Moon Domain once every 25 seconds. A Resonator who gains a Shield inside it gets a stack of Blessing of the Wan Light: each stack gives 4% all DMG Amplification for 10 seconds, up to 10 stacks. From Gloom to Gleam gives the incoming Resonator 50% Heavy Attack DMG Amplification for 14 seconds. Both buffs end early when their recipient leaves the field.
Build and why
The game's build recommends three pieces of Crown of Valor, but the supplied data does not describe its set effect. Two pieces of Sierra Gale are an alternative that gives 10% Aero DMG, matching Iuno's damage type.
Moongazer's Sigil is the first weapon choice. It gives ATK and Resonance Liberation DMG, while gaining Shields lets that damage ignore DEF. Iuno creates her own Shields with Waxing Ascent, and several of her attacks count as Resonance Liberation DMG.
Verity's Handle comes next: its Resonance Liberation DMG Bonus follows a Liberation and can be extended with Resonance Skills. Blazing Justice is another option for ATK and DEF ignore after Basic Attacks, though its Spectro Frazzle bonus is not part of Iuno's listed kit. Abyss Surges is worth considering if you want Energy Regen.
ATK is useful for the size of Iuno's own Shields; it also scales the team Shield from her fourth sequence. Energy Regen is worth considering if you want to cast her Liberation more often. The data does not give a recommended stat distribution.
Leveling priority
A suggested order is Ebb and Flow, Beneath Lunar Tides, Foresight Fugue, Moon Steps, then Illuminated Manifestation. Start with Forte because it contains the Lunar Cycle and Absolute Fullness. Liberation and Skill are both used to enter the cycle and build Sentience.
For ascension, collect Shell Credit, LF Polygon Core, MF Polygon Core, HF Polygon Core, FF Polygon Core, Abyssal Husk and Sliverglow Bloom. Skill upgrades use Shell Credit and the same Polygon Core types, plus The Netherworld's Stare, Cadence Seed, Cadence Bud, Cadence Leaf and Cadence Blossom.
Resonance Chain nodes worth it
For a support build, the second sequence is a good first target: teammates with 10 stacks of Blessing of the Wan Light gain another 40% all DMG Amplification. You still need to reach those stacks on the character who will use the buff.
The sixth sequence is worth considering for Iuno's own damage. It increases Absolute Fullness's damage multiplier by 1600%, then returns her to New Moon with 100 Sentience and resets Arc Beyond the Edge's cooldowns. The fourth sequence grants the whole team a Shield equal to 160% of Iuno's ATK for 30 seconds.
The first and third sequences improve Iuno's time on the field, while the fifth gives her 20% Resonance Liberation DMG Bonus. You can stop after the second if the team buff is your goal and you do not need the later effects.
Teams
Choose a damage dealer who uses Heavy Attacks to receive Iuno's Outro. The buff has no listed element restriction, so the recipient does not have to be Aero. Keep that character on the field to use the 14-second window.
A teammate who can grant Shields is worth considering for Full Moon Domain. The active recipient must gain those Shields inside the field to build their own Blessing stacks. Iuno's personal Shield does not pass to the incoming Resonator, and her stacks do not stay active after she leaves the field.
Jingran, Mornye and Lynae are named teammate options. Check which character will use the Heavy Attack buff and how the team will gain Shields before settling on a lineup; the supplied data does not describe those teammates' skills.
Common mistakes
Do not stay in New Moon after running out of Sentience and expect the spending bonus. Switch to Half Moon and hit enemies to refill it. Holding Jump ends Lunar Cycle instead of switching its state.
Do not swap the damage dealer out early if you want to keep the Outro and Blessing buffs. Also watch STA in the air: it does not recover there during Lunar Cycle, and aerial movement consumes it.
Do not assume the Full Moon Domain's damage buff appears from standing in it alone. Its recipient needs to gain Shields inside the field. Its healing and STA restoration are separate from that condition.
