Kotarou is a stargen support for Quick teams, who has some utility in being able to disable enemies. He has the highest stargen rate among the 1-3*s, and is also able to give a targetable dodge, letting him be a decent support who can both generate stars and aid ally survival.
Chance to seal enemy skills continuously for 5 turns.
Targetable dodge.
Has a skill that applies 100% debuff resist down for a turn on all enemies.
Cons
Lower NP gain compared to his peers.
Skill seal chance is low.
Unable to produce stars instantly.
Skill 1 ATK down too low.
Strategies & Tips
As a star generator, Kotarou is best used in Quick teams, to encourage the formation of Quick chains. He does very well at his job, dishing out plenty of stars while still being able to aid teams through his utility in disabling enemies.
Noble Phantasm
Kotarou’s NP is an AoE Quick NP with 5 hits, which lets it be usable in producing stars. Against 3 enemies, an NPQQ chain from him can easily give 50 stars or so, and even with just his NP alone he can easily make 20-30 stars. It also applies confusion to all enemies for 5 turns, which is a chance to seal their skills every turn for those 5 turns. The chance is rather low, scaling with 30-70% depending on Overcharge, but with its duration, it can be rather useful. Kotarou also is able to reduce the enemy party’s debuff resist by 100% with his 3rd skill, which would make the seal hit for sure for at least one turn.
Kotarou would be able to create Quick chains together, and also lock skills together. His debuff down is also rather useful to make Mata Hari’s charm on NP hit 100%, making for an AoE stun.
Provides offensive and defensive buffs through his skills and NP, as well as charging the party’s NP gauge. He would be able to charge Kotarou’s NP gauge faster, and Kotarou’s debuff down would let Zhuge Liang’s NP’s stun hit the enemy party for sure.
Serenity and Kotarou can stack their skills together to debuff an enemy’s crit rate by 40%, and they can produce stars rather well with each other. Serenity’s NP also has a chance to seal an enemy’s NP and skill, which Kotarou can help her with by decreasing the enemy’s debuff resistance.
Kotarou is able to produce stars for Alexander, which improves his damage and NP gain through crits. His debuff rate down can also make Alexander’s charm hit an enemy Servant for sure, buying you an entire turn.
Kotarou and Shuten can form Quick chains together to create stars. His atk and crit rate down also stacks with Shuten’s NP’s debuffs, and he can debuff the enemy party for Shuten’s charm to hit.
Kotarou’s most notable weakness is his slightly below average NP gain, which would limit his NP usage to an extent. Thus, boosting his NP gain all around or through his Quicks would do well in improving his supportive capabilities.
As a stargen support, Kotarou’s one weakness is his inability to instantly produce stars, making him reliant on hitting the enemy. Giving him the ability to produce stars passively would increase his overall stargen.
Kotarou’s bond CE boosts the party’s Quick performance by 15% while he’s on the field, which would let him support the team’s damage and NP gain as well.
Stats
Lvl
HP
ATK
Base
1,592
1,316
Lv30
5,101
4,111
Lv70
8,844
7,091
Lv80
9,888
7,922
Lv90
10,939
8,759
Lv100
11,991
9,597
Hidden Stats
NP Charge (ATK)
0.54%
NP Charge (DEF)
4%
Star Weight
100
Star Rate
25.6%
Death Resist
38.5%
Alignment
Lawful, Good
Attribute
Man
Traits
Humanoid, Weak to Enuma Elish
Noble Phantasm
Immortal Chaos Brigade (Rank B)
Deal damage to all enemies [Overcharge] Inflict Disorder Status (5 turns) to all enemies [Disorder = Low Chance of Skill-Locking For Every Turn as long as the status is active]
Rank
B
Classification
Anti-Army
Type
Quick
Hit-Count
5
Lvl
Damage +
Charge
Disorder Potency +
1
600%
100%
30%
2
800%
200%
40%
3
900%
300%
50%
4
950%
400%
60%
5
1000%
500%
70%
Immortal Chaos Brigade (Rank B+)
Deal damage to all enemies Decrease DEF by 20% for all enemies (3 turns) [Overcharge] Inflict Disorder Status (5 turns) to all enemies [Disorder = Low Chance of Skill-Locking For Every Turn as long as the status is active]
While the atk down is abysmal at 10%, the decrease in crit rate is rather useful. Stray crits from bosses are always unwelcome, and a 20% max decrease is rather useful, even if the percentage rather small.
Ninja Art A+++
A gnarly useful skill. This lets Fuuma provide some survivability to the team, by giving an ally a full turn dodge. It also boosts stargen by 50% at max, which is rather handy for allies and Quick teams, especially for allies who have a lot of hits.
Paranoia C
A very useful skill, depending on what debuffs you have in your team. Maxing at 100%, this team would bypass most debuff resistances already, and would also let Fuuma’s skill seal chance on his NP to hit for sure on 1 turn.
Sabotage B+
Available from the start Decrease ATK for all enemies by 10% (3 turns) Decrease their Critical Rate (3 turns)
Lvl
Crit Chance -
Cooldown
1
10%
7
2
11%
7
3
12%
7
4
13%
7
5
14%
7
6
15%
6
7
16%
6
8
17%
6
9
18%
6
10
20%
5
Ninjutsu A+++
Unlocks after 1st Ascension Apply Evade for a single ally (1 turn) Increase C. Star Drop Rate for a single ally (1 turn)
Lvl
Star Rate +
Cooldown
1
30%
8
2
32%
8
3
34%
8
4
36%
8
5
38%
8
6
40%
7
7
42%
7
8
44%
7
9
46%
7
10
50%
6
Paranoia C
Unlocks after 3rd Ascension Decrease Debuff Resist for all enemies (1 turn)
Lvl
Debuff Res -
Cooldown
1
50%
7
2
55%
7
3
60%
7
4
65%
7
5
70%
7
6
75%
6
7
80%
6
8
85%
6
9
90%
6
10
100%
5
Class Skills
Presence Concealment A+ Increase your C. Star Drop Rate by 10.5%
Command Cards
Card
Quick
Arts
Buster
Extra
Hit-Count
4
4
1
4
A QQQAB deck is rather fitting for an Assassin, especially for a stargen support. Fuuma has 4 hits on his Quick, Arts, and Extra cards, letting him generate a great amount. While it does limit his damage and NP gain somewhat, it fits best for his role and in making him valuable.