Published March 1 2021
Last Updated September 29 2023
Hero Rating & Base Stats[]
| PVP (Normal) | 7 / 10 |
| PVP (Elite) | 7 / 10 |
| PVE | 4 / 10 |
| Unique Ability | 6 / 10 |
| Red Demon | 2 / 10 |
| Gray Demon | 2 / 10 |
| Howlex | 1 / 10 |
| Bellmoth | 1 / 10 |
| Hraesvelgr | 1 / 10 |
Hero Advanced Stats[]
Skills[]
| Heavy Impact | |||
|---|---|---|---|
|
Rank 1 | 
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Removes Buffs from one enemy and inflicts damage equal to 220% of Attack. |
| Rank 2 |
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Removes Buffs from one enemy and inflicts damage equal to 300% of Attack. | |
| Rank 3 |
|
Cancels Buffs and Stances on one enemy and inflicts damage equal to 400% of Attack. | |
| Valentine's Gift | |||
|---|---|---|---|
|
Rank 1 |
|
Taunts enemies, increases Defense-related stats by 30%, and becomes immune to Stun for 1 turn. |
| Rank 2 |
|
Taunts enemies, increases Defense-related stats by 50%, and becomes immune to Stun for 2 turns. | |
| Rank 3 |
|
Taunts enemies, increases Defense-related stats by 80%, and becomes immune to Stun for 2 turns. | |
Ultimate[]
|
Combo Star | |
|---|---|
|
Inflicts Amplify damage equal to 630 / 693 / 756 / 819 / 882 / 945% of Attack on one enemy. |
Unique[]
| Cynical Beauty | |
|---|---|
|
|
  |
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Commandment[]
| Commandment of Purity | |
|---|---|
|
|
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Hero Guide[]
Summary[]
Blue Derieri was released for Valentine’s Day. Her appearance has a frilly red and black dress with a sweetheart neckline, and she carries a heart-shaped box of chocolates above her demonic hand. Additionally, she was released with a special Costume set effect that provides a bonus when fully equipped. Her Sweet Chocolate Heart costume set is composed of the Allure of the Crimson Queen Outfit, Crimson Queen's Gloves Weapon, and The Crown of the Queen Cosmetic. The overall set bonus grants one random Costume Enhance Materials Box when clearing Death Matches (limit six times per day; randomized activation if duplicate Valentines Set Bonus exists).
Pros[]
- Commandment is beneficial in PvP for decreasing the damage of ranged skills
- Unique ability increases her basic stats every time that she takes damage and limits enemies from using their Ultimate Moves
- Full Costume set effect can be applied on all variants of Derieri and provides a bonus of random Costume Enhance Materials Boxes when clearing Death Matches
Cons[]
- Unlike her other variants that be acquired from normal banners, Blue Valentines Derieri is a limited seasonal event hero that can be difficult to aquire to your team
- Limited utility outside of PvP
- Commandment applies only in PvP and not in PvE, and is not as beneficial as other Commandments
- Unique ability increase to basic stats can be applied only up to three times
- Unlike Red Derieri, unable to gain Evasion and buff skill increases Defense-related stats only but not Attack-related stats, which makes her Ultimate Move not as effective
Skill Review[]
Heavy Impact: Blue Derieri’s primary attack skill removes buffs from her enemy while she is attacking. Rank 3 of this skill also cancels stances in addition to buffs, which is useful for countering enemies such as Blue Goddess Elizabeth in PvP.
Valentine’s Gift: Aptly named for her Valentine’s Day theme, this skill taunts enemies and increases her Defense-related stats. It also makes her immune to Stun. By taunting her enemies, this skill helps to protect her allies in combat, and increasing her Defense-related stats increases her survivability (since she’ll be the primary attack target as a result of taunting).
Ultimate - Combo Star: Blue Derieri’s Ultimate Move inflicts Amplify damage upon a single enemy. Amplify helps to deal an additional 30% of damage per active buff that is on herself, so this is particularly useful when stacked after her Valentine’s Gift skill or when used in combination with another hero who is able to grant her buffs.
Unique - Cynical Beauty: Blue Derieri’s Unique ability increases her basic stats by 10% up to three times when she takes damage from skills. Her Unique ability also applies an Ultimate Move disable effect on all enemies for two turns at maximum stack. This can be extremely useful in PvP as it prevents her enemies from being able to Ult Rush.
Commandment of Purity: As with other variants of Derieri, Blue Derieri’s Commandment of Purity decreases the damage of ranged skills by 35% in PvP. This Commandment applies to both allies and enemies when entering battle, and excludes Ultimate Moves. In PvP, the single Commandment rule applies, so in order to utilize this Commandment, Blue Derieri must be in the left-most spot if other units with Commandments are also used. This skill only applies in PvP and has no impact in PvE.
Usage[]
Blue Derieri has good utility in a Festival Merlin PvP team. This pairs her up with Green Festival Merlin, Red Gowther, and Green Deathpierce. In this team composition, Green Festival Merlin serves as the primary damage dealer. Blue Derieri is used to taunt enemies, cancel buffs and stances, and disable the enemy’s Ultimate Moves. She also serves as a secondary damage dealer in this team. Red Gowther is used to rank up skills, disable attacks, increase damage, and deplete the enemy’s Ultimate Move Gauge. Green Deathpierce as sub increases the team’s overall damage output by decreasing the enemy’s Crit Resistance and Crit Defense.
Two other good uses of Blue Derieri are on either a “The One” PvP team, by pairing her with Blue “The One” Escanor, or a Sariel PvP team with Red Sariel. Both of these team compositions will also make use of either Red or Green Gowther, and then lastly a sub of Green Deathpierce. For both team compositions, either Escanor or Sariel serves as the primary damage dealer. Blue Derieri, Red/Green Gowther, and Green Deathpierce serve similar roles on the team as in the Festival Merlin PvP team.
| Association Name | Association With | Stat Increased |
| Subject of Hate | Red Demon Meliodas | Attack |
| Back Then...Why? | Green Demon Meliodas | Attack |
| Lifesaver | Blue Demon Meliodas | Attack |
| Couldn’t Kill You | Red Elizabeth & Hawk | Recovery Rate % |
| Complicated Feelings | Blue Elizabeth & Hawk | Recovery Rate % |
| Trustworthy | Red Monspeet | Attack |
| Old War Buddies | Green Monspeet | Attack |
Gallery[]
Story[]
Derieri is an elite warrior of the Demon Clan, serving directly under the Demon King as the Purity of the Ten Commandments.
As a member of the Ten Commandments, Derieri is exceptionally powerful. Like all members of the Demon Clan, she is able to utilize the mysterious jet-black power of darkness, as previously seen by Meliodas, to form wings for flight. Her aura, combined with the aura of the other Ten Commandments is so terrifying that it made the normally calm Hendrickson sweat in fear by their presence and unnerved Meliodas when he felt it from several kilometers away.
Derieri was the first demon to showcase the power to devour the souls of the other races, leaving them as empty husks. Like Monspeet, she has incredible sensory abilities as only she and him were able to sense that the Ten Commandments were being watched by Meliodas' comrades from several kilometers away at Liones castle.