Xingqiu Quick TL;DR Support Build Guide
PSA #1: Supports are like cheese. They kinda get stinky and boring if you eat it by itself, but pair it with other foods (DPS)? They make everything taste better (unless you’re lactose intolerant)
PSA #2: Both Xingqiu’s abilities scale off ATK. He may be a nerd, but he’s been studying the blade. Literally. Don’t steal his books, otherwise he’ll cry and get you wet

PSA #3: Max swords is 3 (unless C1), meaning you get 3 hits with damage reduction. The additional damage reduction gained from Hydro DMG% caps at 24%
IMPORTANT TIP: The wet is only applied during the slashes and goes away instantly. The sword ring does NOT apply wet to yourself, but will apply wet to nearby enemies
It is an extremely long CD, which emphasizes when you should be using it. Typically, use it after your Q is used — and obviously when your Q isn’t charged

These swords will shatter on any instance of damage — this means even the fire patches on the grass. THE HEAL IS NOT THAT STRONG as it scales off Xingqiu’s Max HP. Don’t rely on it to heal you in clutch situations

PSA #4: THE Q EFFECTS STAY WHEN YOU SWAP CHARACTERS. THIS IS WHAT MAKES XINGQIU AMAZING. FREE WET PROCS EVERYWHERE. THE HEAL FROM BROKEN SWORDS WHILE Q IS ACTIVE WILL NOT HEAL THE CHARACTER

Talent Leveling Order: Q > E > Normal
WEAPON #1 (Recommended for best energy regen): Favonius Sword
How do I get it D: ? – It’s time to roll boys (gacha)

Sacrificial Sword is also an extremely great option, and arguably better than Favonius Sword around R3. This is due to Xingqiu’s E CD matching up perfectly with Sacrificial Sword’s weapon skill CD (essentially you can almost E twice every time as long as you proc the weapon skill)
Otherwise, at lower refinement, Favonius Sword will be a bit more consistent form of energy recharge
WEAPON #2 (Recommended for early water fun): Fillet Blade
How do I get it D: ? – It’s time to roll boys

Iron Sting and Cool Steel are also great alternatives for early placeholders. Fillet Blade just allows Xinqgiu to combo Q > E > Normal Attack for some quick DPS then swap out
ARTIFACT #1 (Recommend for hydro pump): Noblesse Oblige
How do I get it D: ? – Clear Pool and Mountain Cavern Domain (AR 35 locked, 20 Resin per run)

If you already already have another support running Noblesse Oblige, run 2-set Wanderer’s Troupe + 2-set Noblesse OR if your team isn’t very reaction based you can run 2-set Heart of Depth + 2-set Noblesse as well
ARTIFACT #2 (Recommended for early energy relief): The Exile
How do I get it D: ? – Confront Stormterror Domain (60 Resin per run) or steal some chests

PSA #5: The playstyle is extremely straightforward. Swap to Xing, use Q, use E, and then swap to DPS (or whoever you want to pair wet proc with). If you’re running Fillet Blade, slap an enemy real quick after using E.
Main stats:
Sands | Goblet | Circlet |
---|---|---|
ATK% or ER% | Hydro DMG% | CRIT% or CRIT DMG |
Substats: CRIT% > CRIT DMG > ATK > EM
If you want other characters let me know. Hope this helped. Bye.