Look, I’ve been covering Genshin boss releases for years now, and these two? They’re something else entirely. Gone are the days when you could just face-tank with Zhongli and call it strategy.
What You’re Actually Fighting (And Why It Matters)
The Numbers Game
Radiant Moonfly clocks in at 3.3 million HP with nearly 20k attack at max level. Here’s the kicker – it laughs at your Pyro and Dendro damage with 70% resistance. Sorry, Hu Tao mains.
Knuckle Duckle’s even beefier at 5.6 million HP, but here’s where it gets interesting. This thing was literally created by Aino (yeah, the new character), and it shows. When that barrier goes up, you’re looking at 80% damage reduction across the board.
How These Fights Actually Play Out
Radiant Moonfly operates like a martial arts master having a very bad day. Three distinct phases, each nastier than the last. The real gut punch? That party-wide debuff that tanks your damage by 40% and completely zeros out your crit rate. I’ve watched perfectly good DPS characters become glorified wet noodles.
Knuckle Duckle takes a different approach – it’s basically saying solve this puzzle or don’t progress. Those five Duck minions aren’t just for show; they’re your actual objective. The boss itself becomes untouchable until you clear them out, and each one you defeat chunks 5% off the main boss’s HP.
The Elemental Rock-Paper-Scissors (But More Complicated)
Here’s where years of meta knowledge really pays off.
For Radiant Moonfly, forget everything you know about Pyro supremacy. Diluc? Bench him. Nahida? Save her for something else. This fight belongs to Electro-Charged comps and Freeze teams. Fischl paired with Xingqiu becomes your bread and butter.
Knuckle Duckle is where the new Lunar-Charged reaction system flexes its muscles. Each Duck minion needs exactly 10 Electro-Charged triggers to go down – and trust me, I’ve counted. The resistance numbers are brutal: 150% to most elements, but only 10% to Electro. Do the math.
Cheap Genshin Top Up becomes pretty tempting when you realize Flins basically trivializes the Duck phase with her Lunar-Charged mechanics. Just saying.
Character Picks That Actually Work
Your DPS Options (The Real Ones)
Radiant Moonfly: Yelan’s your MVP here. Sub-DPS role, dodges the resistance penalties, and her burst timing syncs beautifully with the heal-buff windows. Raiden and Keqing also shine – that 10% Electro resistance might as well be a welcome mat.
Knuckle Duckle: If you’ve got Flins, congratulations – you’ve basically won. For everyone else, Fischl’s rapid-fire Electro application is your lifeline. Yae Miko works too, but positioning matters more than you’d think.
Healers (AKA Your New Best Friends)
Kokomi’s instant healing bursts make her the queen of debuff removal. Baizhu brings shields to the party along with healing. Bennett… well, Bennett’s still Bennett, but his burst timing becomes crucial here.
Jean deserves special mention – that cleansing effect on her burst? Game-changer against Radiant Moonfly.
Team Comps That Won’t Let You Down
F2P Reality Check
Radiant Moonfly: Barbara, Noelle, Fischl, Kaeya. It’s not glamorous, but it works. Barbara handles the healing requirements, Noelle provides shields, and you avoid Xiangling’s Pyro resistance issues entirely.
Knuckle Duckle: Here’s where getting Aino for free through the Archon Quest pays dividends. Aino, Lisa, Barbara, Traveler gives you the Electro-Charged foundation without breaking the bank.
Mid-Investment Sweet Spot
This is where Buy Genesis Crystals through BitTopup starts making sense. Kokomi, Zhongli, Yelan for Radiant Moonfly gives you healing, protection, and damage that actually matters.
For Knuckle Duckle? Fischl, Aino, Xingqiu, Kazuha. The overlapping Electro and Hydro application creates a reaction playground.
Whale Territory
C6 Yelan and Ayato together absolutely demolish Radiant Moonfly during buff windows. For Knuckle Duckle, Flins with C6 Fischl support makes Duck elimination almost trivial.
Actually Winning These Fights
Radiant Moonfly Strategy (Step by Step)
When that debuff hits – and it will – immediately focus on healing ONE character to full HP. Not everyone at once. One.
Use your buffed character while keeping others protected. That +50% damage buff is your damage window.
Rotate through healing each party member individually. It’s tedious but necessary.
Save your bursts for when multiple characters have the damage buff active.
The key insight here? This isn’t about raw DPS anymore. It’s resource management disguised as a boss fight.
Knuckle Duckle Phase Management
Forget the main boss exists once those Ducks spawn. Seriously.
Attack the boss until shield phase triggers
Immediately switch targets to the five Ducks
Apply Hydro consistently (Aino’s burst is perfect for this)
Trigger exactly 10 Electro-Charged reactions per Duck
Only then focus fire on the now-vulnerable main boss
I cannot stress this enough – trying to damage the shielded boss is wasted time and resources.
Gear That Makes the Difference
Artifact Priorities
Night of the Sky’s Unveiling set is tailor-made for Lunar reaction users. For traditional setups, Gladiator’s Finale still delivers.
Knuckle Duckle fights favor Elemental Mastery scaling over raw ATK. Gilded Dreams on Fischl, Ocean-Hued Clam on Kokomi. The damage comes from reactions, not base stats.
Budget Builds
Mixed artifact sets focusing on main stats work fine for these fights. Instructor sets provide team-wide EM buffs on a budget. Don’t overthink it if you’re just starting out.
The Farming Math
Each new character needs 46 materials total. That’s 23 boss defeats, or 920 Resin per character. At 2-3 materials per 40 Resin (at higher World Levels), you’re looking at a significant time investment.
Genshin Impact Top Up through BitTopup offers competitive rates for Genesis Crystals if you want to refresh your way through the grind. Their instant delivery and secure transactions make the process painless.
Don’t Make These Mistakes
Team composition errors: Using Pyro DPS against Radiant Moonfly’s 70% resistance. Focusing the shielded boss instead of Ducks.
Timing issues: Healing everyone simultaneously instead of individually. Wasting bursts outside buff windows.
Resource management: Not saving energy for extended Knuckle Duckle encounters.
I’ve seen too many players bang their heads against these fights using outdated strategies.
Looking Forward
Version 6.0’s Lunar reaction system signals a major shift toward Elemental Mastery builds and reaction-based gameplay. The emphasis on healing and debuff management? That’s the future of Nod-Krai content.
These bosses aren’t just roadblocks – they’re teaching tools for what’s coming next.
Your Questions, Answered
What elements actually work against these bosses? Radiant Moonfly: Anything except Pyro/Dendro. Electro-Charged and Freeze comps excel. Knuckle Duckle: Electro-Charged reactions are mandatory for Duck elimination.
How do I deal with that brutal -100% Crit Rate debuff? Heal any single character to maximum HP. The debuff vanishes and you get +50% damage plus +15% Crit Rate. Kokomi, Baizhu, or Bennett work best for quick individual healing.
What’s the secret to beating those Ducks efficiently? Each needs exactly 10 Electro-Charged hits. Use consistent Hydro application (Aino, Xingqiu) with rapid Electro triggers (Fischl, Yae). Aino’s burst covers the area perfectly.
Best F2P approach? Radiant Moonfly: Barbara, Noelle, Fischl, Kaeya. Knuckle Duckle: Aino (free from quest), Lisa, Barbara, Traveler. Both avoid expensive 5-star requirements.
How much Resin for full ascension? 920 Resin per character for 46 materials. Budget accordingly – that’s nearly a month of natural Resin generation.
Are these harder than existing world bosses? Absolutely. They require specific strategies over brute force. But proper team composition makes them manageable, not impossible.
The bottom line? These fights respect preparation over power. Plan accordingly.
