Sweetheart
Sweetheart is a 5★ Beast Arcanist in Reverse: 1999. Below are the exact Insight materials needed to ascend them, plus other Beast Arcanists to build alongside.
Data updated: 2026-07-11
Sweetheart — Review & Analysis
Marilyn is a single-target Reality DPS with control baked in: Incantation I funnels damage into one enemy, while her Ultimate hits for 400%+, cuts the target's Reality DEF and Mental DEF for 3 rounds, and inflicts [Stun] for 1 round. Her passive grants Crit Rate on entry and stacks [Infatuated] on attackers to reduce incoming damage, so she trades blows while shrugging off hits. The standout is her utility package: armor shred that opens the target for the team plus a hard [Stun] lock.
- Ultimate does three jobs at once: heavy damage, a 3-round Reality and Mental DEF shred, and a 1-round [Stun] lock.
- Solid self-sustain: her passive stacks [Infatuated] on attackers to cut the damage they deal to her, and the stacks add up.
- Free Crit Rate on entry, plus bonus damage against targets under a debuff — which lines up neatly with her own DEF-down and Stun.
- Her Beast afflatus is countered by Mineral: against Mineral teams she takes 30% more damage, undercutting the survival she leans on from [Infatuated].
- A Gentle Breeze's bonus damage requires the target to already be under a Stat Down/Abnormal/Control effect, so it needs setup and falls flat when she opens with no debuff in play.
Level her Ultimate first — it's her biggest source of value: Advancement tiers push its damage higher and raise the armor shred to 30%, all bundled with the Stun. Bring up Incantation I next to seal single-target kills. For Psychubes, favor ATK/crit-oriented options to build on her innate Crit Rate and her Reality-DPS core; if you want her to survive longer you can lean into a survival-oriented piece, but don't trade away too much damage for it.
Overview
Base Stats (max level)
| Base Stats (max level) | Lv.1 | Lv.30 | Insight 1 · Lv.40 | Insight 2 · Lv.50 | Insight 3 · Lv.60 |
|---|---|---|---|---|---|
| HP | 1,312 | 1,992 | 3,339 | 4,979 | 5,857 |
| ATK | 241 | 367 | 614 | 916 | 1,077 |
| Reality DEF | 115 | 175 | 292 | 436 | 512 |
| Mental DEF | 92 | 140 | 234 | 348 | 410 |
| Crit Rate | 11.9% | 11.9% | 13.5% | 15.0% | 16.6% |
| Crit DMG | 147.8% | 147.8% | 150.2% | 152.5% | 154.9% |
Sweetheart — Skills & Incantations
Incantation I — A Dud Bullet
Incantation “Insight II: 1-target attack. Deals 500% Reality DMG.”
Incantation II — A Gentle Breeze
Incantation “Insight II: Mass attack. Deals 335% Reality DMG to 2 enemies. If the target is in 【Stats Down】, 【Neg Status】, or 【Control】 statuses, this attack deals 75% more Reality DMG.”
The Final Rite — Tonight, a Sweet Dream
Ultimate “Insight II: 1-target attack. Deals 500% Reality DMG. Inflicts Reality DEF -30% and Mental DEF -30% for 3 rounds and 【Daze】 for 1 round on the target hit.”
Insight Legacy — A Low Murmur
Incantation “Insight III: When attacking, inflicts 1 stack of 【Enchanted】 for 2 rounds on the target hit. If the target is of the opposite gender, inflicts 1 additional stack of 【Enchanted】 on the target.”
Skill Quotes
“Bullets always hurt people.”
“Bullets always hurt people, no matter their type.”
“Bullets always hurt people, no matter their type. But some people still love them.”
“They're in the eye of the storm.”
“They're in the eye of the storm, but they never tried to leave.”
“They're in the eye of the storm, but they never tried to leave. Perhaps everyone has a reason to be obsessed.”
“Spent a night having a dream, then spent a lifetime trying to escape from it.”
Insight Materials
Insight 1
Insight 2
Insight 3
Resonance Materials
All 14 Resonance levels
Recommended Psychubes
Where to Get
Teams with Sweetheart
An-an Lee, Kassandra and Sweetheart all tap into Daze — combining it across three kits at once outperforms any single carry doing it alone. Medicine Pocket keeps the line-up alive with Sturdy so that payoff has time to land.
Teams →
