Spoilers: enemy names, artwork and rewardsIncludes content beyond the demo. Open to view the bestiary; close to hide it.
All monstersSiren
1 recorded variant. Select a variant to see its own stats, artwork and rewards.

- HP
- 20,000
- MP
- 600
- Stagger
- 550
- Strength
- 165
- Stamina
- 70
- Magic
- 165
- Spirit
- 70
- Speed
- 50
700 EXP · 2,100 gil
Element resistance
Status resistance
0% neutral · Negative: more damage · 100%: immune · 200%: absorbs. Status percentages are resistance, not infliction chances.
Drops
Steals
Drop percentages are base chances before bonuses. Steal slot probabilities are still being verified.
Attack Pattern
Repeats a three-action attack pattern. Below 60% HP, Allure can interrupt the pattern, but she always leaves two ordinary actions between uses.
Numbers count this boss’s own actions; combos are listed together. Battle-turn rules are labeled.
| When | Action |
|---|---|
| At 60% HP or above | Repeat: choose from Ruin (about 33%) or Aero (about 67%) → choose from Flash Flood (40%) or El Niño (60%) → 70% Water / 30% Silence. |
| Her first action below 60% HP | Use Allure. On the next two actions, choose from Flash Flood (40%) or El Niño (60%), then Ruin (about 33%) or Aero (about 67%). |
| From her third action after Allure onward | Each action can use Allure again instead of the normal attack. The first such chance in the fight is about 52%; later chances range from about 40% to 56%. Each use starts the two-action gap again. |
| When she does not use Allure | Continue this repeating pattern: choose from Flash Flood (40%) or El Niño (60%) → choose from Ruin (about 33%) or Aero (about 67%) → Slap. |
Combat Actions
| None | Magic | Single Target | 12 | 2 | 100 | 25 | — |
1 more
| — | |
| None | Physical | Single Target | 12 | 1 | 100 | 25 | — | Listed as the replacement attack when Silence prevents a spell. | — | |
| Magic | Single Target | 14 | 1 | 100 | 17 | 5 MP |
1 more
| Deal wind-type magic damage. | ||
| Physical | Single Target | 18 | 1 | 100 | 25 | — |
1 more
| — | ||
| Magic | AoE | 18 | 1 | 100 | 12 | — |
1 more
| — | ||
| Magic | Single Target | 14 | 1 | 100 | 17 | 5 MP |
| Deal water-type magic damage. | ||
| None | Magic | Single Target | — | — | 100 | 25 | 5 MP |
| Inflict Silence on an enemy. | |
| None | — | AoE | — | — | — | — | — |
| Effects: Automatic Skill. Open the ability for details. | |
| None | Physical | Single Target | 24 | 2 | 100 | 25 | — |
| Effects: Automatic Skill. Open the ability for details. |
Traits & Passives
Uses Charm attacks.
Research Notes
These patterns were checked against the installed game’s AI.
Variant source data
Stored base stats. Encounter effects may modify these values. Battle-group references do not establish demo availability.
{
"unitId": 451,
"table": "DT_UnitParameter",
"row": "セイレーン_BOSS",
"offset": 204781,
"faceIconId": 451,
"dropNormalRate": 1,
"dropRareRate": 30,
"stealRate": 5,
"battleGroups": [
9013
]
}
