.
"It all depends on Yojimbo's "Motivation".
His "Motivation" is calculated as follows:
It starts at 0, naturally.
1st step: The money you paid him for the attack
Yojimbo's "Motivation" according to how much you paid him for the attack:
1~3 Gil -> + 0
4~7 Gil -> + 4
8~15 Gil -> + 8
16~31 Gil -> + 12
32~63 Gil -> + 16
64~127 Gil -> + 20
128~255 Gil -> + 24
256~511 Gil -> + 28
512~1023 Gil -> + 32
1024~2047 Gil -> + 36
2048~4095 Gil -> + 40
4096~8191 Gil -> + 44
8192~16383 Gil -> + 48
16384~32767 Gil -> + 52
32768~65535 Gil -> + 56
65536~131071 Gil -> + 60
131072~262143 Gil -> + 64
262144~524287 Gil -> + 68
524288~1048575 Gil -> + 72
1048576~2097151 Gil -> + 76
2097152~4194303 Gil -> + 80
4194304~83886007 Gil -> + 84
8388608~16777215 Gil -> + 88
16777216~33554431 Gil -> + 92
33554432~67108863 Gil -> + 96
67108864~134217727 Gil -> + 100
134217728~268435455 Gil -> + 104
268435456~536870911 Gil -> + 108
536870912~999999999 Gil -> + 112
2nd step: The Compatibility parameter
[That hidden parameter starts at 128.
The minimum is 0, and the maximum is 255.
It decreases of 20 points if you pay him 0 Gil.
It decreases of 10 points if Yojimbo "dies" during the battle.
It decreases of 3 points if you recall him just after you summoned him.
It decreases of 1 point when he attacks with Daigoro.
It doesn't change when he uses his "Kozuka" attack.
It increases of 1 point when he uses his "Wakizashi" attack on one enemy.
It increases of 3 points when he uses his "Wakizashi" attack on all enemies.
It increases of 4 points when he uses his "Zanmato" attack.
It doesn't reset when the battle is over.]
Yojimbo's "Motivation" according to his "Compatibility" parameter when you paid him for the attack:
+ (Compatibility / 4)
(round off by ignoring what's after the decimal)
3rd step: Your answer when you hired him, and the Zanmato Lv. of the enemy
First of all, if you said that you wanted to hire him as a part of your training as a Summoner:
X [0.75 + (what you paid for the attack X 0.5 / the total amount of Gil you have)]
(round off by ignoring what's after the decimal)
Then, if you said that you wanted to hire him as a part of your training as a Summoner, or to destroy fiends:
Enemy is Zanmato Lv. 1 -> X 1
Enemy is Zanmato Lv. 2 -> X 0.5
Enemy is Zanmato Lv. 3 -> X 0.33
Enemy is Zanmato Lv. 4 -> X 0.25
Enemy is Zanmato Lv. 5 -> X 0.2
Enemy is Zanmato Lv. 6 -> X 0.16
(round off by ignoring what's after the decimal)
If you said that you wanted to hire him to defeat really strong enemies:
Enemy is Zanmato Lv. 1~3 -> X 0.8
Enemy is Zanmato Lv. 4~6 -> X 0.4
(round off by ignoring what's after the decimal)
4th step: The Overdrive gauge
If it was full when you paid him for the attack:
+ 20
5th step: The random factor
That one is totally random:
+ 0~63
Final step: So, how much does that make?
If, after all that, Yojimbo's "Motivation" is equal or superior to 80, he'll use Zanmato.
If it isn't, the whole calculation will be made one more time, but the enemy's Zanmato Lv. will be considered to be 1 this time.
And according to the new "Motivation" result...
0~31 -> Daigoro
32~47 -> Kozuka
48~63 -> Wakizashi (one enemy)
64+ -> Wakizashi (all enemies)
Every enemy has a Zanmato Resistance Level(Even ones that are impossible to Zanmato[Like underwater fiends]). There are 5 Zanmato Resistance Levels. The higher the level the harder to Zanmato. There are enemies that have more than one variation of that enemy. The variations have different HP, MP, STR, etc., and in the Mimics case, different weaknesses and Zanmato Levels.
Zanmato Resistance Level One
Achelous
Aerouge
Ahriman
Alcyone
Anacondaur
Aqua Flan
Bandersnatch
Bashura
Basilisk
Bat Eye
Bite Bug
Black Element
Blue Element
Bomb (2 types)
Buer
Bunyip
Cave Iguion
Chimera (2 types)
Chimera Brain
Coeurl
Condor
Dark Element
Dark Flan
Defender
Defender X
Defender Z
Demonolith
Dingo
Dinonix
Dual Horn (2 Types)
Epaaj
Evil Eye (2 Types)
Exoray
Fallen Monk (2 Types)
Flame Flan
Floating Death
Floating Eye
Funguar
Gandarva
Garm
Garuda (3 Types)
Gemini
Ghost
Gold Element
Grat
Grenade
Grendel
Grothia
Guado Guardian(sometimes Lv.4) (3 Types)
Halma
Ice Flan
Iguion
Imp
Ipiaria
Iron Giant
Killer Bee
Klikk
Kusariqqu
Lamashtu
Land Worm
Larva
Lord Ochu
Macea
Maelspike
Mafdet
Magic Urn
Mandragora
Master Coeurl
Master Tonberry
Maze Larva
Mech Defender
Mech Guard
Mech Gunner
Mech Hunter
Mech Leader
Mech Scouter
Melusine
Mi'ihen Fang
Murussu
Mushussu
Nebiros
Nidhogg
Ochu
Octopus
Ogre
Phlegyas
Piranha
Puroboros
Ragora
Raldo
Raptor
Red Element
Remora
Sahagin (3 Types)
Sahagin Chief
Sandragora
Sand Wolf
Sand Worm
Shred
Simurgh
Sinscale(Underwater Sinscale is Lv.4) (3 Types)
Sinspawn: Ammes
Skoll
Snow Flan
Snow Wolf
Spathi
Spirit
Splasher
Swamp Mafdet
Thorn
Thunder Flan
Tonberry
Valaha
Varuna
Vouivre (2 Types)
Warrior Monk (2 Types)
Wasp
Water Flan
Wendigo
White Element
Worker
Wraith
Xiphos
YAT-97
YAT-99
Yellow Element
YKT-11
YKT-63
Yowie
Zaurus
Zu (2 Types)
Zanmato Resistance Level Two
Barbatos
Behemoth
Behemoth King
Cactuar
Great Marlboro
Marlboro
Quatuar
Zanmato Resistance Level Three
Adamantoise
Anima
Zanmato Resistance Level Four
Arms
Biran Ronso
Chocobo Eater
Crawler
Evrae
Evrae Altana
Extractor
Geneaux's Tentacle
Geosgaeno
Guado Guardian(Sometimes Lv.1)
Head
Kimahri
Left Fin
Mimic (4 Types)
Mortibody
Mortivessel
Negator
Oblitzerator
Omega Weapon
Pterya
Right Fin
Sanctuary Keeper
Seymour
Seymour Flux
Seymour Natus
Seymour Omnis
Sin(Fin)
Sin(Core)
Sin(Head)
Sinscale(Underwater)
Sinspawn: Echuilles
Sinspawn: Genais
Sinspawn: Geneaux
Sinspawn Gui
Spectral Keeper
Spherimorph
Tros
Ultima Weapon
Yenke Ronso
Yunalesca
Zanmato Resistance Level Five
All Monster Arena bosses and Dark Aeons + Penance are Resistance Level 5.
Yojimbo may attack without being paid.
The odds are:
Compatibility parameter / 1024.
When he does attack without being paid, the kind of attack is decided as follows:
[Compatibility parameter / 4] (round off by ignoring what's after the decimal) + 0~63 (random)
If the result is:
0~31 -> Yojimbo uses his "Daigoro" attack
32~47 -> Yojimbo uses his "Kozuka" attack
48~63 -> Yojimbo uses his "Waizashi" attack against one enemy
64~79 -> Yojimbo uses his "Wakizashi" attack against all enemies
80+ -> Yojimbo uses his "Zanmato" attack _if the enemy's Zanmato Lv. is 1_, otherwise, he uses his "Wakizashi" attack against all enemies
That means that if you Compatibility parameter reached its limit (255), Yojimbo will attack without being paid 1 time out of 4, and will use either Wakizashi or Zanmato."
Rehellisesti sanoen... aika pimeetä