Base Defence ~ Ruins
Base Defence (拠点防衛) is one of the 2 stages of Special Request in Blue Archive.
General Information[]
- Ruins is set in Indoor Terrain
Indoor IconCategory:test - This stage drops Exp Report that is used to level-up students and nothing else.
- The higher the difficulty, the better the rewards will be as well as the quantity of the reports.
- AP required gets increasingly expensive the higher the difficulty.
- As a result, both the rewards and especially the experience points gets better.
- Once teachers complete the stage with 3★, they can rush the stage.
- As the enemies are weak to Penetration type, teachers should organize a team of Penetration type student.
- The mechanic of this stage is that the enemies will come in large numbers so it is recommended to bring range students and 1 tank.
- Starting from Ruins D, the enemies' attack will increase significantly and teachers will no longer be able to just bring a basic squad.[1]
- Teachers are recommended to bring more than just firepower such as students whose EX-Skill can move students.
Activity Report[]
- Activity Report or Exp Report, are items that upgrades a student.
- Activity Report have 4 different grades and can be distinguish by its color and name.
- Beginner / Intermediate / Advanced / Superlative Activity Report
初級 / 中級 / 上級 / 最上級 強化珠 - Gray > Blue > Orange > Purple
- Beginner / Intermediate / Advanced / Superlative Activity Report
- Activity Report can be exchange from the Shop or through Base Defence and Events.
| Activity Reports Experience Points | |||
 Exp Report 0Category:testBeginner Activity Report 初級レポート |
 Exp Report 1Category:testIntermediate Activity Report 中級級レポート |
 Exp Report 2Category:testAdvanced Activity Report 上級レポート |
 Exp Report 3Category:testSuperlative Activity Report 最上級レポート |
| EXP +50 | EXP +500 | EXP +2000 | EXP +10000 |
Stage[]
| Base Defence | |||||
| Difficulty | Level | AP | Reward(s) | ||
| Ruined Munition Factory A | 5 | 5 | |||
| Ruined Munition Factory B | 20 | 10 | |||
| Ruined Munition Factory C | 30 | 15 | |||
| Ruined Munition Factory D | 40 | 20 | |||
| Ruined Munition Factory E | 50 | 25 | |||
| Ruined Munition Factory F | 55 | 30 | |||
| Ruined Munition Factory G | 60 | 35 | |||
| Ruined Munition Factory H | 65 | 40 | |||
| Ruined Munition Factory I | 73 | ||||
| Ruined Munition Factory J | 78 | ||||
| Ruined Munition Factory K | 80 | ||||
| Ruined Munition Factory L | 85 | ||||
| Ruined Munition Factory M | 86 | ||||
Enemy[]
| Enemy | ||
| Decagram Sweeper Taser Yellow | Decagram Sweeper Taser White | Decagram Sweeper Taser Black |
 Decagram Sweeper Taser Yellow SpriteCategory:test
|
 Decagram Sweeper Taser White SpriteCategory:test
|
 Decagram Sweeper Taser Black SpriteCategory:test
|
 Offensive IconCategory:testNormal /  Defensive IconCategory:testHeavy Armor
| ||
Recommendation[]
Due to the large number of enemies, there will be situations where the tank retreats while holding the enemies, this will result in the enemies rushing in to attack the other students. Especially in the higher difficulty levels where the tanks are more likely to fall back.
As a countermeasure, it is recommended to move the tank forward with Serina's EX-Skills. By doing so, the enemies will concentrate on tank and this will give teachers a chance to use their range students to wipe them out.
Another way is to use Utaha's or Hifumi's EX-Skills. They will summon a decoy that will distract the enemies and will also give teachers enough time either wait for the their student's cooldown, heal their students or just outright wipe out the enemies will their range students.
Striker[]
Attacker[]
| MAX SKILL LEVEL | ||
| EX | Deals 821% of ATK as DMG to enemies in a fan-shaped area. | 5 |
| N | Increases ATK by 41.4% every 30 sec. Lasts 20 sec. | |
| P | Increases CRIT.DMG by 26.6%. | |
| Sub | Deals 12.8% of ATK as additional DMG when attacking large-sized enemies. | |
| MAX SKILL LEVEL | ||
| EX | Fires 3 shots that each deal 666% of ATK as DMG to targets and enemies in a fan-shaped area behind them. | 3 |
| N | Deals 436% of ATK as DMG to 1 enemy every 25 sec. | |
| P | Increases ACC by 26.6%. | |
| Sub | Deals 43.1% of ATK as additional DMG when attacking without cover. | |
| MAX SKILL LEVEL | ||
| EX | Obtain 0.7 Skill Cost per evil deed. (Evil deeds are reset). Deals 340% of ATK as DMG to 1 enemy, then ricochets to nearby enemies to deal 340% of ATK as DMG (up to 11 times). | 6 |
| N | Deals 321% of ATK as DMG to enemies in a round-shaped area every 30 sec. | |
| P | Increases MAX HP by 26.6%. | |
| Sub | Accumulates 1 evil deed for every 6 enemies defeated by an ally. Up to 6 evil deeds can be stacked, and each evil deed decreases DEF by 5.3%. | |
| MAX SKILL LEVEL | ||
| EX | Deals 1417% of ATK as DMG to enemies within a straight line. Decreases current HP by 25.7%. | 5 |
| N | Become INVINCIBLE when HP drops to 20% or lower. Lasts 24.3 sec. (1x per battle). | |
| P | Increases EVA by 26.6%. | |
| Sub | Deals 1.7% ~ 9.4% of ATK proportionate to your missing HP as additional DMG when attacking. | |
| MAX SKILL LEVEL | ||
| EX | Deals 1410% of ATK as DMG to enemies in a fan-shaped area. | 3 |
| N | Increases ATK by 47.9% every 40 sec. Lasts for 20 sec. | |
| P | Increases MAX HP by 26.6%. | |
| Sub | Increases DEF by 25.5% when not under CC. | |
| MAX SKILL LEVEL | ||
| EX | Deals 594% of ATK as DMG to enemies within a round-shaped area around a designated target. | 4 |
| N | Deals 266% of ATK as DMG within a round-shaped area around the enemy with the highest ATK every 25 sec. | |
| P | Increases CRIT.DMG by 26.6%. | |
| Sub | Increases CRIT.DMG by 42.4% When using her EX or Normal Skill (6 sec). | |
| MAX SKILL LEVEL | ||
| EX | Attack a maximum of 5 enemies dealing 191% of ATK as DMG to each. Deals 51.8% of ATK as additional continuous POISON DMG if Momoi is in the same unit. Last for 20 sec. | 3 |
| N | Recovers 147% of HEAL as HP for your currently lowest HP ally, excluding yourself, every 25 sec. | |
| P | Increases CRIT.R by 26.6%. | |
| Sub | Increases ATK SPD by 28.7%. Increases ATK SPD by 34.4% if Momoi is in the same unit. | |
| MAX SKILL LEVEL | ||
| EX | Deals 541% of ATK as DMG against enemies within a fan-shaped. Deals 93.6% of ATK as additional continuous BURN DMG for 20 sec if Midori is in the same unit. | 3 |
| N | Increases ACC by 42.3% every 30 sec. Last for 20 sec. | |
| P | Increases CRIT.R by 26.6%. | |
| Sub | Increases ATK by 28.7%. Increases ATK by 34.4% if Midori is in the same unit. | |
| MAX SKILL LEVEL | ||
| EX | Changes Normal Attack to deal 138% of ATK as DMG in a fan-shaped area and increases ATK by 45.2%. Reloads 2x instantly. | 3 |
| N | Recovers 221% of HEAL as HP after defeating an enemy (CD: 10 sec). | |
| P | Increases SPD by 26.6%. | |
| Sub | Has a 57% chance to add 1 bullet upon defeating an enemy. | |
| MAX SKILL LEVEL | ||
| EX | Deals 605% of ATK as DMG to all enemies in a round-shape area. Cost reduced to 5. | 5 |
| N | Focuses assault on the enemy with the highest ATK and decreases CRIT.DMG.RES by 35.6% every 40 sec (15 sec). | |
| P | Increases ATK by 26.6%. | |
| Sub | Increases COST REGEN by 511, with an additional increases of 146 for every 1 Red Winter students in the unit (excluding yourself) (max of 3 students). | |
Tank/Decoy[]
| MAX SKILL LEVEL | ||
| EX | Deals 697% of ATK as DMG to enemies in a fan-shaped area. Inflicts STUN (1.4 sec). | 4 |
| N | Continuously recovers 191% of HEAL when HP is 30% or lower. Lasts for 20 sec. (1x per battle). | |
| P | Increases DEF by 26.6%. | |
| Sub | Casts 205% of HEAL as a BARRIER while using EX-Skills. | |
| MAX SKILL LEVEL | ||
| EX | Cast 248% of HEAL as a BARRIER. Last for 25 sec. | 3 |
| N | Deals 573% of ATK as DMG to 1 enemy every 15 sec. | |
| P | Increases DEF by 26.6%. | |
| Sub | Recovers 142% of HEAL as HP when taking cover (CD: 10 sec). | |
| MAX SKILL LEVEL | ||
| EX | Summons a Peroro plush with 160% of Hifumi's Max HP and deals 386% of ATK as DMG to enemies within a round-shaped area. Inflicts TAUNT (3.9 sec). | 5 |
| N | Deals 212% of ATK as DMG to 1 enemy every 35 sec. Decrease enemy ACC by 32%. Last (30 sec). | |
| P | Increases Max HP by 26.6%. | |
| Sub | Increases COST REGEN by 1861 when using EX-Skill. Last (5 sec). | |
| MAX SKILL LEVEL | ||
| EX | Increases DEF by 44.9% for 30 sec. TAUNTS all enemies within a round-shaped area (6.2 sec). | 4 |
| N | Recovers 663% of HEAL when HP below 30%. (1x per battle). | |
| P | Increases DEF by 26.6%. | |
| Sub | Decreases incoming DMG by 45.6% while reloading. | |
| MAX SKILL LEVEL | ||
| EX | Deals 636% of ATK as DMG to enemies in a arched-shaped area. Also decreases their REC by 45.5% (30 sec). | 3 |
| N | Become INVINCIBLE when HP drops to 20% or lower. Lasts for 22.8 sec. (1x per battle). | |
| P | Increases EVA by 26.6%. | |
| Sub | Increases EVA by 38.3% when using EX-Skill. | |
Special[]
Attacker[]
| MAX SKILL LEVEL | ||
| EX | Deals 395% of ATK as DMG to enemies in an arched-shaped area. Decreases CRIT.DMG by 27.7% (30 sec). | 3 |
| N | Increases ATK by 16.4% for allies in a round-shaped area every 40 sec (for 30 sec). | |
| P | Increases ATK by 26.6%. | |
| Sub | Increases ally CRIT.DMG RES by 17.3%. | |
| MAX SKILL LEVEL | ||
| EX | Deals 75.9% of ATK as DMG over time to enemies in a straight-line (20 sec). | 5 |
| N | Deals 389% of ATK as DMG to enemies in a round-shaped area every 30 sec. | |
| P | Increases CRIT.DMG by 26.6%. | |
| Sub | Increases ally CRIT.DMG by 17.3%. | |
| MAX SKILL LEVEL | ||
| EX | Deals 489% of ATK as DMG to enemies line. Deals 66.2% of ATK as continuous BURN DMG.(20 sec). | 4 |
| N | Deals 160% of ATK as DMG to 5 enemies every 40 sec. Inflict STUN (1.6 sec). | |
| P | Increases ATK by 26.6%. | |
| Sub | Increases ally ATK by 17.3%. | |
Decoy[]
| MAX SKILL LEVEL | ||
| EX | Summons a turret with 154% of Utaha's ATK (30 sec). | 4 |
| N | Summons a turret every 30 sec with 72.6% of Utaha's ATK (20 sec). | |
| P | Increases ATK by 26.6%. | |
| Sub | Increases ally MAX HP by 17.3%. | |
Supporter/Healer[]
| MAX SKILL LEVEL | ||
| EX | Increases ATK by 47.4% for allies in round-shaped area (30 sec). | 3 |
| N | Deals 450% of ATK as DMG to 1 enemy every 30 sec. Decreases ATK by 18.9% (20 sec). | |
| P | Increases ACC by 26.6%. | |
| Sub | Increases ally ATK by 17.3%. | |
| MAX SKILL LEVEL | ||
| EX | Move 1 ally to a designated location, then recovers 228% of HEAL as HP. | 2 |
| N | Recovers 178% of HEAL as HP for 1 ally every 35 sec. | |
| P | Increases HEAL by 26.6%. | |
| Sub | Increases ally CC.RES by 17.3%. | |
Trivia[]
- Base Defence shares its location with Chesed, one of the Prophet of Decagrammaton.