EO3/Ninja/Skills

This page details full data for the Ninja's skills in Etrian Odyssey III: The Drowned City. In addition to these skills, every class also has access to Common Skills.

Skill Tree

Class Skill

Mystic Calm (Keburi no Sue) 煙りの末
Class Skill Ninja skill that reduces TP used. No attack penalty from back row. From level 1 onward, the Ninja can perform melee attacks from the back row without penalty to damage. TP costs cannot go below 1.
Level	1	2	3	4	5	6	7	8	9	10
TP Cost Reduction	0	1	2	3	4	5	6	7	8	9

Knife Mastery branch

Knife Mastery 短剣マスタリー
Mastery Skill Prerequisite for knife skills that raises knife damage dealt. This raises the damage of regular attacks only.
Level	1	2	3	4	5	6	7	8	9	10
Damage Increase	2%	3%	4%	5%	6%	7%	8%	9%	10%	11%

Shadow Bind (Kagenui) 影縫
Knife Skill Knife: Slash attack causing leg bind by stitching their shadow. Body part used: Arms Stat(s) used: STR, TEC, LUC Prerequisite skill(s): Knife Mastery, lv. 1
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	6		7		8		9	10	11	12
Damage	140%	145%	150%	155%	160%	166%	172%	178%	184%	190%
Infliction Rate	33%	36%	39%	42%	45%	48%	51%	54%	57%	60%
Hit Rate Modifier	-5		-4		-3		-2		-1
Action Speed	-6

Izuna 飯綱
Knife Skill Knife: Slash attack to one enemy. May cause petrification. Body part used: Arms Stat(s) used: STR, TEC, LUC Prerequisite skill(s): Knife Mastery, lv. 3 Shadow Bind, lv. 5
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	6	7	8	9	10	11	12	13	14	15
Damage	140%	147%	154%	161%	168%	181%	194%	207%	221%	235%
Infliction Rate	25%	27%	29%	31%	33%	35%	37%	39%	42%	45%
Hit Rate Modifier	-5		-4		-3		-2		-1
Action Speed	-6

Hawk Strike (Takanoha) 鷹乃羽
Knife Skill Knife: Slash damage to random enemies several times over. Body part used: Arms Stat(s) used: STR Prerequisite skill(s): Knife Mastery, lv. 5
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	7	8	10	11	12	14	16	18	20	22
Damage Per Hit	80%	85%		90%	95%		100%	105%		110%
Number Of Hits	2		2-3			2-4			3-4
Damage Range	160%	170%	170% - 255%	180% - 270%	190% - 285%	190% - 380%	200% - 400%	210% - 420%	315% - 420%	330% - 440%
Average Damage	160%	170%	212.5%	225%	237.5%	285%	300%	315%	367.5%	385%
Hit Rate Modifier	-10	-9	-8	-7	-6	-5	-4	-3	-2	-1
Action Speed	+9

Evasion branch

Concealment (Senpuku) 潜伏
Passive Skill Increases the ninja's evasion.
Level	1	2	3	4	5	6	7	8	9	10
Evasion Increase	10%	12%	14%	17%	20%	23%	26%	29%	32%	35%

Ninpo: Flight (Sarutobi) 忍法 猿飛
Support Skill High probability to nullify enemy physical attacks for this turn. Only protects the user. Does not affect elemental, almighty, or non-damaging attacks. Body part used: Leg Prerequisite skill(s): Concealment, lv. 1
Level	1	2	3	4	5
TP Cost	3	4	5	6	7
Activation Rate	50%	60%	70%	80%	100%
Action Speed	+60

Ninpo: Smoke (Kumogakure) 忍法 雲隠
Support Skill Sacrifice HP for a significant evasion boost for three turns. HP Cost is half the user's current HP. The HP Cost can not kill the user. Stacks additively with other evasion boost. Body part used: Leg Prerequisite skill(s): Concealment, lv. 5
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	5		6		7		8		9	10
Evasion Increase	30%	35%	40%	45%	50%	55%	60%	65%	70%	75%
Action Speed	-3

Reflexes (Karuwaza) 軽業
Passive Skill Recover TP after successfully evading attacks. Prerequisite skill(s): Ninpo: Flight, lv. 3 Ninpo: Smoke, lv. 3
Level	1	2	3	4	5	6	7	8	9	10
TP Recovery	2	4	6	8	10	12	14	16	18	20

Ailment branch

Ninpo: Daggers (Fukubari) 忍法 含針
Ninjutsu Skill Piercing attack that may inflict sleep on three enemies. This skills is always ranged. Targets enemies randomly and each enemy can only be attacked once. Body part used: Head Stat(s) used: STR, TEC, LUC
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	4		5		6		7		8
Damage Per Hit	40%	44%	48%	52%	56%	60%	64%	68%	72%	80%
Total Damage	120%	132%	144%	156%	168%	180%	192%	204%	216%	240%
Infliction Rate	10%	13%	16%	19%	22%	25%	28%	32%	36%	40%
Hit Rate Modifier	-2		-1		0		+1		+2
Action Speed	-3

Ninpo: Mirror (Suikyou) 忍法 水鏡
Special Skill May spread a status ailment from one enemy to all other enemies. Has no effect on binds. Body part used: Head Stat(s) used: TEC, LUC Prerequisite skill(s): Ninpo: Daggers, lv. 1
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	3		4		5		6		9
Infliction Rate	30%	34%	38%	42%	46%	50%	55%	60%	99%	999%
Action Speed	-9

Ninpo: Caltrops (Makibishi) 忍法 撒菱
Counter Skill Counters attacks to the target row with a slash that may poison. Counter damage and poison damage are fixed and cannot be buffed. Counter triggers only once per enemy. The counter can not miss if activated. Damage are affected by the target Slash resistance. This attack is a melee attack. Subclassing - Even if the target is weak to slash Singularity will not trigger. Body part used: Arm Stat(s) used: TEC, LUC Prerequisite skill(s): Ninpo: Daggers, lv. 3
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	4		5		6		7		8
Counter Damage	20	25	30	35	40	50	60	70	80	90
Infliction Rate	40%	42%	44%	46%	48%	50%	52%	54%	56%	60%
Poison Damage	15	18	21	24	27	30	35	40	45	50

Beheading (Kubikiri) 首切
Passive Skill Normal attacks may be fatal blows. Stacks multiplicatively with Instant Death acquired by forging. Does not require a weapon to activate. This skill will try to activate several times if the user do several normal attacks in the same turn. Stat(s) used: TEC, LUC Prerequisite skill(s): Ninpo: Mirror, lv. 3 Ninpo: Caltrops, lv. 5
Level	1	2	3	4	5	6	7	8	9	10
Activation Rate	7%	8%	9%	10%	11%	12%	14%	16%	18%	20%

Decoy branch

Ninpo: Mirage (Kagerou) 忍法 陽炎
Special Skill Create a shadow of yourself in an empty slot to draw attacks. Decoy comes with a passive increased aggro effect ranging from 3 to 5 instead of 0 to 4. Decoy cannot be healed, buffed, debuffed, inflicted with ailments or binds, or take any actions. Several decoy can be summoned. Decoy can participate in Limit Skills. Body part used: Head
Level	1	2	3	4	5
TP Cost	10	9	8	7	6
Decoy HP/TP	1	10	20	40	80
Action Speed	+6

Otori 忍法 招鳥
Support Skill Makes monsters target one ally for three turns. The default aggro value is between 0 and 4. Overwrites Great Warrior/Daifuhensha, Provoke and Play Possum. Body part used: Head Prerequisite skill(s): Ninpo: Mirage, lv. 1
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	5		6		7		8		9
Min Aggro Value	3
Max Aggro Value	5	6	7	8	9	10	11	12	13	15
Action Speed	+6

Ninpo: Double (Bunshin) 忍法 分身
Special Skill Use half your HP and TP to create a copy of yourself in the party. Consumes half the user's current HP and TP to generate the clone, after deducting the base TP cost. Clones are perfect replicas of the user and can also be controlled in battle. Clones can participate in Limit Skills. The game does not distinguish between who is the original user and who is a clone. If more than one copy of a party member exists, whoever is KO'd first is treated as the clone vanishing. Clones vanish at the end of battle (victory or retreat), returning their HP and TP to the original member. Body part used: Head Prerequisite skill(s): Ninpo: Mirage, lv. 3
Level	1
TP Cost	10
Action Speed	+6

Revenge Bomb (Nikudan) 肉弾
Passive Skill Once per battle, launch a fire attack upon being KO'ed. Also triggers when clones are KO'd. Each new clone comes with a distinct use of this skill. This attack is a melee attack. Stat(s) used: STR Prerequisite skill(s): Otori, lv. 3 Ninpo: Double, lv. 1
Level	1	2	3	4	5	6	7	8	9	10
Damage	200%	220%	240%	270%	300%	330%	370%	410%	450%	500%
Hit Rate Modifier	-10	-9	-8	-7	-6	-5	-4	-3	-2	-1

Drawing Slice (Tagen Battou) 多元抜刀
Knife Skill Knife: Team up with your shadow for random slashes. Shadow will fade. If used without clones, $DamagePerHit=0.5\times BaseDamage\times SkillMultiplier$ If used with clones, $DamagePerHit=BaseDamage\times SkillMultiplier\times 2^{NumberOfCopiesOfUnit}$ On use, all clones will merge back into one unit with their total HP and TP, after deducting this skill's TP cost from the user. Body part used: Arms Stat(s) used: STR Prerequisite skill(s): Knife Mastery, lv. 10 Revenge Bomb, lv. 3
Level	1	2	3	4	5	6	7	8	9	10
TP Cost	18	19	20	22	24	26	29	32	36	40
Base Damage	50%	52%	54%	57%	60%	63%	66%	69%	72%	75%
Skill Multiplier	×1.00	×1.01	×1.02	×1.03	×1.04	×1.05	×1.06	×1.07	×1.08	×1.10
Damage Per Hit (Ninja + 1 Clone)	200%	210%	220%	234%	249%	264%	279%	295%	311%	330%
Number Of Hits	3		3-4				3-5
Damage Range (Ninja + 1 Clone)	600%	630%	660% - 880%	702% - 936%	747% - 996%	792% - 1056%	837% - 1395%	885% - 1475%	933% - 1555%	990% - 1650%
Average Damage (Ninja + 1 Clone)	600%	630%	770%	819%	871.5%	924%	1116%	1180%	1244%	1320%
Hit Rate Modifier	-10	-9	-8	-7	-6	-5	-4	-3	-2	-1
Action Speed	+9

Other skills

Tonsou Jutsu 遁走の術
Escape Skill Run from battle to the last used staircase or Submagnetic Pole. Body part used: Leg Stat(s) used: AGI, LUC
Level	1	2	3	4	5
TP Cost	5	4	3	2	1
Escape Rate	40%	50%	60%	70%	80%
Action Speed	-10

References

• Datamining and tips for Ninja by DrFetus/Araxxor
• Skill simulator
• Etrian Odyssey III atwiki (Japanese) - Ninja Page