Fadia Complete Build Guide: ETD-4 Member, Baicang’s Best Partner, the HP-to-Damage Vampire Tank-Healer

Key Answer: Fadia is a 1.0 standard S-rank tank-healer + Sub-DPS, with the Anima / Psyche element, a Synthesis-type twin-blade + cross-shield Arc, JP CV Naomi Shindo, the codename “Apostle of Love and Death,” and is an Anomaly Bureau ETD-4 member + Baicang’s direct subordinate. Core mechanic: the HP-to-damage vampire Esper power — automatically shares allies’ damage + the DE mark makes enemies take linked damage (the more she gets hit, the stronger she gets). Her signature Arc, Eternal Waltz, is completely free (the “Deal? Deal!” main quest + the Cape Grand Hotel weekly boss). Baicang’s best partner (perfectly cancels his built-in self-damage).

An Anomaly Bureau ETD-4 member, a vampire-type Esper, and Baicang’s direct subordinate — Fadia is known across the community as “Baicang’s best partner,” an “ETD-4 member,” the “HP-to-damage textbook,” and “the more she gets hit, the stronger she gets.” This article lays out her mechanics, build, Eidolons, recommended teams, and progression path all in one place.

1. Character Basics

Item	Details
Chinese Name	法蒂亞 (this site’s primary translation) / 法蒂婭 (some zh-TW guides)
English Name	Fadia
Rarity	S-rank (standard pool)
Element	Anima / Psyche / Mental (the in-game zh translation is the “Anima” element; in English it’s Psyche, with skill damage labeled as Mental DMG)
Arc Type	Synthesis
Weapon Look	Twin blades + a transforming Cross Shield
Role	Survival / tank + healer + Sub-DPS — the unique HP-to-damage mechanic
Codename	Apostle of Love and Death
Lore	Anomaly Bureau ETD-4 member; a vampire-type Esper; a member of Hytro City’s elite squad, Baicang’s direct subordinate, on the same team as Lacrimosa and Skia
Voice Actors	EN: Amber Lee Connors; JP: Naomi Shindo / Kei Shindo; CN per the in-game text
Release Date	CN server 2026/04/23, global server 2026/04/29

2. Skill Set

Basic Attack [Wordless Rejection]

A three-hit Mental-damage combo, mainly used for charging / swapping; when Fadia is not the on-field Main DPS, her basic attack has the lowest priority.

E / Shift Skill [Existence]

Applies a Destructive Experience (DE) mark to “the enemy with the highest Max HP.”

⭐ When Fadia takes damage, the marked target suffers linked damage (base multiplier around 300%, up to 600% after A1)

This mark is Fadia’s main source of Sub-DPS output.

Q / Ultimate [Agony to Euphoria]

Transforms into the Lilith form, dealing AoE Mental damage and healing the whole team (the healing scales off Fadia’s Max HP).

⭐ Within 10 seconds of activating the Ultimate, Fadia has an enhanced basic-attack chain on the field, and combined with Eternal Waltz triggers a 10%-18% Mental DMG buff.

Passive [Attraction / Damage Transfer] ⭐ Core

• While HP > 1, she automatically transfers a portion of damage taken by allies onto herself (roughly 50% base, raised to 75% at A5)
• The transferred damage cannot be re-distributed and is settled before shields
• Once HP drops to 1, it switches to splitting her own damage out to allies (which triggers the Ultimate-finisher threshold)

Combo Routines

Offensive (Sub-DPS):

Sit on the bench soaking damage via the passive → HP approaches the DE threshold → swap in, E (mark)
→ Q (Ultimate finisher, Mental DMG burst + heal) → finish with enhanced basic attacks → swap back to the Main DPS

Splitting (Healing):

Stay on the bench the whole time, only swapping in to use Q for the large-area heal when allies are in critical danger

3. Eidolons / Awakenings (A1-A6)

Eidolon	Name	Effect	Priority
A1	Instinct	DE linked-damage multiplier 300% → 600%, “Attraction” duration +4 sec, E skill CD -2 sec	⭐⭐⭐⭐⭐ Most critical
A2	Curser of Blessings	Max HP +30% in combat, DE efficiency +15%	⭐⭐⭐⭐⭐
A3	Apostate	Damage-transfer ratio raised to 75%	⭐⭐⭐⭐
A4	Bringer of Love and Death	DE can be applied to multiple targets at once (up to 10)	⭐⭐⭐⭐
A5	Breaker of Taboos	Ultimate-finisher healing raised to 60% of Max HP	⭐⭐⭐
A6	Survivor of Death	Lilith-form Crit Rate +, plus +8% HP per Anima ally (up to 24%)	⭐⭐

Conclusion: She is fully playable at E0 (the passive itself is the core mechanic); A1 is the qualitative leap (doubling output), A2 greatly raises her tankiness, so for the absolute peak, go A1 + A2; A6 has the worst value and isn’t worth forcing for regular players.

4. Best Build (Two Paths)

Path A: Offensive / Sub-DPS

Arc — Eternal Waltz (free BiS)

Stat	Value
Type	Synthesis
Base ATK	424 (Lv 80) / 28 (Lv 1)
Sub-stat	HP%, up to 41.2% (Lv 70+)
Core Passive T1	Max HP +20%; for 10 seconds after using the Ultimate finisher, Mental DMG +10%
Max Remix T5	Max HP +32%; Mental DMG +18%

How to obtain: complete the main quest “Deal? Deal!” → unlock the Hytro Ebisu Auction House / the Cape Grand Hotel weekly boss “The Never-Ending Arachne” → clear it to get the drop, completely free

For the detailed boss strategy, see the Anomaly Boss Bestiary.

Gear — Demon Blood: Curse 4-piece

• 2-piece: Mental DMG +10%
• 4-piece: Damage +18%, raised to +36% against enemies in the Nova or Stain state
• Alternative: Demon Blood 2 + Tiny Big Adventure 2 (a mixed transitional setup)

Main / Sub Stats

Slot	Priority
Main Stat	HP% / Mental DMG% / crit sub-stats
Main-stat priority	HP% > Mental DMG% > Crit Rate / Crit DMG

Path B: Splitting / Healing (F2P / stable tank)

Arc

Eternal Waltz (as above) or a defensive-barrier-type S Arc (alternative)

Gear — Tiny Big Adventure 4-piece

• +4% Max HP each time she takes damage, stacking up to 10 for a total of +40-50% HP, each stack lasting 10 sec
• ⭐ The Ultimate finisher instantly refills all 10 stacks
• Pairs godlike with Fadia’s “blood as a shield, blood as a blade” mechanic

Main Stat

Stack HP% all the way; sub-stats HP% > flat HP > DEF%

5. Recommended Teams

1. Discord Meta Team (one of the strongest this version / Baicang-team variant) ⭐

Jiuyuan / Nanally (Main DPS) + Daffodill (Sub-DPS) + Sakiri (Buffer) + Fadia (tank + heal)

Fadia’s damage transfer lets the Main DPS deal damage worry-free, and her Q’s large AoE clears trash mobs along the way

2. ETD-4 Fan Team (story teammates + faction damage buff) ⭐

Baicang (Main DPS) + Fadia (tank / Sub-DPS) + Lacrimosa (Sub-DPS / Chaos) + Skia (Buffer / stealth)

Fadia’s Attraction passive perfectly cancels out Baicang’s built-in self-damage mechanic (the source of the community meme “Baicang’s best partner”); having multiple ETD-4 members on the team can trigger coordinated attacks

3. F2P / Low-Resource Stable Team

Fadia (healing-focused) + Skia + Daffodill + Adler (shields)

Fadia acts purely as a healer-tank; any 3 Main DPS can be propped up

4. Charge (Thunder) Team

Mint (Main DPS) + Esper Zero / Hathor + Fadia + Skia

6. Progression Priority

1. Character level Lv 1 → 80 (ascension materials: Fading Phantom → Blurred Phantom → Chaotic Phantom, Moon-Water Pick, Beetle Coins)
2. Skill leveling order: Ultimate Finisher (Q) > Shift Skill (E) > Assist Skill > Basic Attack
3. Level the Eternal Waltz Arc to max Lv 80 (free to obtain, prioritize feeding it upgrade materials)
4. Gear:
   • Offensive → Demon Blood: Curse 4-piece
   • Splitting → Tiny Big Adventure 4-piece
5. Remix (signature-Arc refinement) prioritize T2 / T3; T5 has diminishing returns

7. Pull / Self-Select Advice

Conclusion: buildable at F2P, but she sits last in the standard self-select order.

Rank	Character
1	Jiuyuan
2	Sakiri
3	Daffodill
4	Baicang
5	Hathor
6 / last	Fadia

When You Should Pull

• ⭐ You already pulled / self-selected Baicang — Fadia is his best partner
• ⭐ You want to assemble the ETD-4 fan team (Baicang + Fadia + Lacrimosa + Skia)
• You lack a stable tank / healer and want to skip the healer slot

When There’s No Rush

• You still have no Main DPS → fill the Main DPS slot first
• You already have a strong healer (another A/S-rank healer) → keep Fadia as a long-term play

8. Community Memes / Reception

• “ETD-4 member” — high faction identity, a must-pull for story fans
• “Baicang’s best partner” — Baicang’s skills carry built-in self-damage, and Fadia’s passive catches it perfectly, a model of 1+1 > 2
• “HP-sharing / damage-transfer mechanic” — a unique role found nowhere else in the game, the most stable tank this version
• “Eternal Waltz is the textbook of trading HP for damage” — a free S-rank signature Arc + an HP sub-stat + a Mental DMG buff, three-in-one
• “The more she gets hit, the stronger she gets” — the DE mechanic makes high-difficulty content actually feel comfortable to play
• Overall Bahamut reception: T1 strength, “especially good in specific comps,” “the standard S with the highest long-term investment value”

9. Fadia vs Other Support / Healer Comparison

Comparison	Fadia	Sakiri	Edgar
Rarity	S standard	S launch gift	A free
Element	Anima	Incantation	Cosmos
Role	Tank + healer + Sub-DPS	Whole-team buff + crowd control	Healer + shields
Mechanic uniqueness	HP-to-damage (unique in the game)	30% ATK buff	Standard healing
Pairing with Baicang	⭐⭐⭐⭐⭐ perfectly cancels self-damage	⭐⭐⭐ generic	⭐⭐
Self-select priority	last	first (if not gifted)	don’t pull

Related Guides

• Signature Weapon (Signature Arc) Complete Guide — full comparison of Eternal Waltz
• Gear System Complete Guide — Demon Blood vs Tiny Big Adventure
• Anomaly Boss Bestiary — how to beat The Never-Ending Arachne
• Baicang Complete Build Guide — the best ETD-4 partner
• Team Building Primer — the Discord team structure
• 1.1 Version Preview — Lacrimosa joins ETD-4

FAQ

Fadia information compiled from public sources including Game8, GameWith, Mobalytics, HN PlayNews, LDPlayer, BlueStacks, Bahamut, Neverness.gg, and others. Some Awakening values differ slightly between guilds (the Attraction ratio 50%/75%, the 60% heal, the 600% DE multiplier, etc.); the in-game text is authoritative. The translation “Fadia” is rendered “法蒂亞 / 法蒂婭” in Chinese; this site uses the former.