Heidi: Thief of Rose

Character Alts

Synthesis Gift

HP	P.ATK	P.DEF	M.ATK	M.DEF	SPD
2273	861	602	786	600	263

Leader Skill: To Protect Our Home

Boosts all “Family & Friends” characters’ P.Atk, M.Atk, P.Def and M.Def by 30%.

Skill 1
Skill 2
Burst Skill
Passive Skills

After attacking, boosts own stun damage when attacking a weakness by 40% for 1 turn and restores 10% of the item gauge.

Before attacking, reduces target’s Strike resistance by 30% for 3 attacks. After attacking, boosts P. ATK of the ally with the highest P. ATK by 15% for 1 turn.

Skill Name: Disparosa | Target: All | Potency: 240% | Stun: 150% | Wait Time: 200

Force stuns targets weak to the attack.
After attacking, boosts P. ATK of the ally with the highest P. ATK by 25% for 1 turn.

Passive Skill 1: Come On, Follow Up Attack!
After stunning any target, restores 30% of the item gauge and boosts all allies’ battle item damage to enemies by 100%. (MAX 200%)

Passive Skill 2: Final Battle Gear: Schwarz Rose
Status Effect Immunity

Skill 1: Skill Name: Amethystar | Target: Single | Potency: 33% | Stun: 17% | Recovery: None | Wait Time: 100

After attacking, boosts own stun damage when attacking a weakness by 40% for 1 turn and restores 10% of the item gauge.
Skill 2: Skill Name: Rosa Clavo | Target: Single | Potency: 167% | Stun: 141% | Recovery: None | Wait Time: 200

Before attacking, reduces target’s Strike resistance by 30% for 3 attacks. After attacking, boosts P. ATK of the ally with the highest P. ATK by 15% for 1 turn.
Burst Skill: Skill Name: Disparosa | Target: All | Potency: 240% | Stun: 150% | Wait Time: 200

Force stuns targets weak to the attack.
After attacking, boosts P. ATK of the ally with the highest P. ATK by 25% for 1 turn.
Passive Skills: Passive Skill 1: Come On, Follow Up Attack!
After stunning any target, restores 30% of the item gauge and boosts all allies’ battle item damage to enemies by 100%. (MAX 200%)

Passive Skill 2: Final Battle Gear: Schwarz Rose
Status Effect Immunity

The Tales
We Weave

Sprinkling Magic
from the Sky

Overcoming
Despair

Watching
Fireworks

Dress-Up
Outing!

A Continuation
of that Summer

Despite being an SR rarity memoria, The Tales We Weave is one of Heidi’s strongest offensive choices when playing around Strike affinity teams, adding an extra layer of Strike Resistance down to all her skills that will boost the damage of all follow-up attacks from allies for the next 2 hits. This memoria requires the target to be weak to Strike, which Heidi can easily achieve for herself with her Skill 2 .The low Speed of this memoria does not represent any issue thanks to her immense 263 base Speed and high Speed accessories.

The Dress-Up Outing! memoria, when sufficiently ranked up, can seriously increase the P.Atk stat given by her Skill 2 and Burst secondary effects, but it’s not as attractive as it is for other breakers as this potency is lower, and she will clash with characters like Empel: The Gate Closer who are almost always in her teams

The Sprinkling Magic from the Sky is also viable, increasing the damage the targets take, it will reduce their Strike, Stab and Slash Resistances on hit. The catch is that this memoria needs a high rank in order to be noticeable, or it will fall short.

If stun power is what you are after, her strongest choice is the Overcoming Despair memoria which offers one the highest stun damage potencies in her arsenal and very high Speed but is also reliant on rank. Rank 2 of this memoria is usually strong enough to be noticeable, but more accessible memorias such as A Continuation of That Summer and Watching Fireworks can work as more budget alternatives in certain situations.

Force Macht Power

While equipped to a Breaker with Strike affinity, after attacking, boosts target’s damage received by 9 ~ 12% for 1 attack.

Powerful effect that massively boosts the damage taken by the target of Heidi’s attacks. It only lasts for 1 attack but requires no conditions.

Beginner’s Sling

While equipped to a Breaker with Strike affinity, boosts stun damage by 12 ~ 17% when attacking a weakness.

Stun oriented weapon. Normally used for the very rare cases she cannot one shot enemy stun bars with her Skill 2 otherwise, with the outcome of it strongly relying on that happening, like Strike Tournament.

Beloved Sword

While equipped to a Breaker, boosts stun damage by 8 ~ 11% when attacking a weakness.

Bit weaker stun effect but viable and cheap to make. Its condition is easy to meet for Heidi even against enemies that are neutral to Strike damage due to her Skill 2 applying a Strike Resistance debuff before the attack itself, making them weak to Strike.

Steel Bow

While equipped to a Breaker, boosts stun damage by 6 ~ 8%.

This weapon provides a slight boost to stun damage and has no special conditions required. It’s cheap to make and unlocked very early in the game, making it ideal for beginners without access to anything above.

Layered Velvet – Strike

While equipped to a character with Strike affinity, after attacking, boosts enemy’s damage received by 4 ~ 5% for 2 attacks.

The most universal armor pick that works to assist any team. If assisting Strike teams, this armor may or may not perform worse than Raisonnement depending on the general presence of this same debuff, and the total strike resistance down the enemy has. Pick to balance out both effects.
This armor does not need enemies to broken and can stack up to twice.

Raisonnement

When attack target is stunned, reduces target’s Strike resistance by 5 ~ 7% for 2 attacks.

Only when assisting Strike teams, this effect exchanges the damage taken debuff for a strike resistance debuff. They are both good, but balancing both effects is ideal.
This item requires to stun the target to apply the effect over them.

Temperance Robe

While equipped to a character with Strike affinity, boosts stun damage by 9 ~ 12%.

This armor is a moderate increase to stun potencies for all her skills. It’s an ok item if you are lacking a bit of breaking power.

Hard Coat

Boosts physical stun damage by 6%.

This armor provides a small boost to physical stun damage. It’s one of the first recipes to be unlocked in the game making it extremely accessible and cheap, which works great as a placeholder item in the early stages while you unlock more suitable pieces like Champion’s Attire or any of the others mentioned above.

Spirit Beast’s Tail

While equipped to a character with Strike affinity, when attack target is stunned, boosts skill damage of the ally with the highest P. ATK by 13 ~ 19% for 1 turn.

This effect grants a powerful 1 turn buff on Heidi’s main damage dealer if she successfully stuns an enemy. If having multiple turns before that ally, she can stun multiple enemies to grant this effect multiple times too.
It has great Speed stat and is generally the preferred accessory for offense when assisting any kind of team. It could be weaker than Gauntlets when playing around Strike teams.
This effect works on magic damage dealers as well, but it will be aimed at the character with highest P.Atk in the team so be careful of adjusting that before Heidi ends up aiming this towards herself.

Dien Talon

While equipped to a character with Strike affinity, boosts single-target attack stun damage by 13 ~ 18%.

Massive stun effect on a high Speed accessory. It only affects her Skill 2, which is usually enough considering her Burst auto-breaks any enemy weak to her attacks anyway.
The is the go-to accessory for breaking purposes only.

Gauntlets

When attack target is stunned, reduces target’s Strike resistance by 10 ~ 14% for 1 attack.

When assisting Strike teams exclusively, this is the most powerful effect she can inflict on enemies, offensively. It only lasts 1 attack directly after successfully stunning an enemy, so it needs to be rightly timed. This accessory has low Speed, but Heidi doesn’t have problems adjusting to that.

Eldritch Ring: Strike

While equipped to a Breaker with Strike affinity, boosts stun damage by 9 ~ 12%.

Moderate stun effect on a moderate accessory with moderate Speed. It’s good if you need extra stun power on her Burst and cannot hit a weakness. Generally not necessary but it’s an ok alternative.

Main Traits

Physical Stun Damage Boost trait is her main source of stun damage, her primary role, and the easiest trait to get too. This is a key component for her to fulfill all her roles as breaker and debuffer, as all her skills benefit from stunning her targets to trigger her secondary effects and passives. Her kit does not include debuffs that rely on other weakening traits so she is free to build as many stun oriented as she likes, to leave the gear effects themselves open for offense instead.
Stun Damage Up on Weakness is a more recent trait that’s even better on her, especially as she can normally create a Strike Weakness for herself. This trait is harder to get, however, and it’s just a luxury.

Situational Traits

Additional Physical Stun Damage Boost in all 6 trait slots is always good to have, but more niche builds also exist:
The Enhanced Damage Buff [A] trait is pretty ok to have when paired with items like Spirit Beast’s Tail and memorias like Our Masterpiece and To the Academy of Dreams!. This will reduce her breaking potential considerably but, if the fight allows it, this can be a drastic boost to ally offensive power.
Enhanced P./M. Resistance Down, as of November 2024, currently has no effect on her at all. However, in the future a new weapon relevant to her called Hammer of Judgement will let her increase her targets physical damage taken, making this trait viable.

Heidi is the fastest breaker in the game by a lot. This lets her adjust to a variety of setups and turn orders with no difficulties by simple changing some memorias or accessories.
Her kit is simple and does not need special traits so dedicating all her 6 trait slots to strengthening her breaking power is normally ideal.
One of her most powerful passive effects, the ability to generate almost a third of a full item gauge, requires her to stun an enemy. This, once again, emphasizes her primary role as a pure breaker rather than a debuffer.
Her Burst Skill is one of the most highly impactful skill in the game, with the ability to force break all enemies at once if they are weak to Strike. They don’t need to be naturally weak. Allies like Firis: Crystaler of Rose and Sophie: Profuse Phronesis, or battle items like Living Trash Can or Imp’s Mischief with Strike Curse traits, or even her own Skill 2 effect among many other items and memorias, all have the ability to reduce enemies’ Strike Resistance, allowing the force break to happen. This works amazingly well against many of the hardest fights the game has to offer.
For an enemy to be considered weak to an attack, the resistance must be at least -25% for that specific affinity. A -15% or -20% resistance will not be considered a weakness attack.
Her Skill 1 generates item gauge, repositions her in the timeline and gives her a ridiculous 40% temporary boost to her stun damage. This skill is a prime component of many fast item stacking clears, with her Burst being the component that ties everything together later. This whole interaction can be seen in all fights shown in the Video #2 below.
Her Leader Skill is incredibly strong, not only providing high offensive power to allies like Valeria, Flocke, Suelle, Lydie, Escha and Lanze (and all their different alt versions), but also a great defensive boost to them and herself. This Leader Skill makes her really tanky compared to most other breakers which opens up a variety of different strats that would not possible otherwise.
She can combo with Rorona: Joyful Leader in a multitude of ways by using her Skill 1 in the first turn. If no other faster ally has done so before, this will automatically place her directly after Rorona‘s first turn, where she can be granted a Burst panel to instantly stun all targets. This is illustrated more clearly in the Video #1 below.