
At a glance
Guide notes- Role
- Shield support Mystic — tops up the lowest HP allies and branches into economy or Burn peel
- Best for
- Runs that already have a damage carry and need a dedicated peeler / Shield battery
- Strength
- Vault Spark always helps the most desperate heroes, so she stabilizes uneven boards better than selfish casters
- Weakness
- Low personal clear — drafting Fiona as your only “carry” stalls the run
Current Tier Ranking
Full Guildrun tier listEconomy and Shield Mystic who stabilizes boards without needing perfect damage relics.
Recommended build: Mystic Sustain Field
How to play
Decision notes for shops and formation — not a copy of the in-game panel.
Early
Great second or third pickup after a real damage threat exists. Buy Mana Regen so Vault Spark fires every fight.
Mid
Right Hand = item/Shard factory. Lustrous = self-Shield + Burn revenge when Shields break. Tycoon = team Max HP stacks from casts. Pick the branch that matches your missing job.
Late
Keep casting. Shield banners and Mystic abundance pieces matter more than random Magic unless Lustrous Burn is your damage plan.
Positioning
Mid-back behind the tank, close enough that her Shields land on the collapsing front line — not marooned on the far wing.
Base Stats
- Max HP
- 750
- Max Mana
- 100
- Starting Mana
- 25
- Mana Regen
- 8
- Defense
- 31
- Attack
- 0
- Magic
- 0
- Attack Speed
- 0
- Crit
- 15
- Move Speed
- 1.5
- Attack Range
- 3
- Mana Lock (s)
- 0.75
- Base Attack Speed
- 0.39
- Base Attack Damage
- 25
Ranks C → S
Draft a duplicate or use an eligible campfire event to rank up. Art below shows each rank portrait for Fiona.

Rank C
Base kit — the active ability is equipped and the starting stat line applies.
- C — start with the active ability and base kit.
- B — lock one of three specialization paths.
- A / S — take the rank stat package, then draft class modifiers.
Abilities
Kit text from the Demo dump, plus short notes on how to play around each ability.
Active

Vault Spark
activeSpark a protective vault. Apply 0.5 (+ 250% Magic ) Shields to the 250 (+ 1 per 12 Mana Regen ) lowest current % Max HP Heroes.
In practice: It prioritizes lowest % HP heroes. Place your real carry where she can still see them when they dip — do not hide the carry out of practical range.
Passives

The Right Hand
passiveEvery 1 casts, create a random item and gain 0 (+ 0% rank ) Shards.
In practice: Lean into Shard — itemize the stats this ability already scales with.

The Lustrous
passiveOn cast, gain 1 (+ 1 per 200 Max Health ) Shields. Whenever an enemy damages a Shielded Hero, inflict 1 (+ 0% rank ) Burn on that enemy per 0 Shields removed. Backup.
In practice: Shield loops are the point: itemize to cast often and add Shield synergy relics.

The Tycoon
passiveEvery 1 casts, gain a Tycoon stack. At start of combat, Heroes gain 1 (+ 100% Mana Regen ) Max HP per Tycoon stack. Backup.
In practice: Lean into Max HP — itemize the stats this ability already scales with.
Specializations
Rank B paths that reshape how Fiona scales through a run.

The Right Hand
Every 1 casts, create a random item and gain 0 (+ 0% rank ) Shards.
When to pick: Economy path — casts create items and Shards. Take when the shop is dry and you need resources more than raw Shields.

The Lustrous
On cast, gain 1 (+ 1 per 200 Max Health ) Shields. Whenever an enemy damages a Shielded Hero, inflict 1 (+ 0% rank ) Burn on that enemy per 0 Shields removed. Backup.
When to pick: Combat path — Shields on cast and Burn when enemies chew Shields. Take when you want Fiona to contribute damage, not only peel.

The Tycoon
Every 1 casts, gain a Tycoon stack. At start of combat, Heroes gain 1 (+ 100% Mana Regen ) Max HP per Tycoon stack. Backup.
When to pick: Team Max HP stacking from casts (Backup-friendly). Take when the whole board needs a health floor.
Best relics & synergies
Relics that overlap Mystic keywords and Fiona's ability tags. Top matches include a short “why”.

Mystic's Abundance Engine
Heroes gain 8 Mana Regen. Whenever a Mystic Shields a Hero, give that Hero lasting Shields equal to 100% of the Shield applied.
Why: Helps cast/economy loops on Right Hand or Tycoon turns.

Mystic's Barrier Banner
Whenever a Mystic casts, they Shield the lowest-health Hero equal to 5% of their Mana Regen.
Why: Amplifies the Shield job you drafted her to do.

Mystic's Prosperity Filigree
Whenever a Mystic casts after Stall (1), they give the nearest Hero Magic and Attack equal to 0% of their Mana Regen.
Why: Matches Fiona's Mystic / Stall / Mana Regen tags.

Mystic's Protection Banner
Whenever a Mystic casts, they Shield the nearest Hero equal to the total number of Debuff stacks on all enemies.
Why: More protection tools for the same support niche.

Mystic's Vital Reflection
Mystics gain 4 Mana Regen and 200 Max HP.

Arcane Amplifier
Mages and Mystics gain 50 Magic and 4 Mana Regen.
Shard
Crystal charges spent or consumed for bonus effects.
54 relics · 12 abilities · 3 classes
Crit
Critical strikes and effects that trigger when attacks crit.
49 relics · 19 abilities · 3 classes
Rush
Tempo windows that amp allies for a short burst of aggression.
41 relics · 16 abilities · 4 classes
Stall
Control and delay tools that interrupt enemy pace.
39 relics · 22 abilities · 4 classes
FAQ
Common questions when this hero shows up in the shop or draft.
Is Fiona good in Guildrun?
Very good as support next to a carry. Weak as a solo early hero. Shop rule: if you have damage but keep whiting out, Fiona is the fix.
What class is Fiona?
Mystic. Role focus: Shield support with economy (Right Hand), Burn peel (Lustrous), or team Max HP (Tycoon) branches.
What relics work with Fiona?
Mystic Barrier/Protection banners, Abundance engines, and Arcane amplifiers for cast power.
How do you play Fiona?
Stack Mana Regen, cast Vault Spark every fight, and specialize toward economy, Burn revenge, or team HP depending on what the board lacks.
Tips
- If your carry still dies first, move Fiona closer or add a real tank — more Magic on Fiona will not fix pathing.
- Right Hand floods the inventory; have a plan for item slots (Niklas synergy is real).
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