RUB

Sprite
Hit % 96%
Type Black Magic LV 6
Effect Inflicts Death-elemental KO on one foe
Target One foe
Element Death
Inflict Status KO

Learned by

WM
RM
BM
Kn
WW
RW
BW
Ni
Sold In Crescent Lake (20,000 G)
RUB is a single-target KO Spell that isn't particularly accurate. Further, a lot of Monsters (including all Undead) resist Death Spells. It's a fun Spell to cast, but it's really not very good. QAKE is the same level and hits multiple targets, though many creatures resistant to Earth are not resistant to Death. Either way, you're probably better off saving a level 6 Spell slot for some other use.
Compare RUB to other Spells
Shops: Where RUB is sold – 1 shown
Map Shop
Crescent Lake L6 Bl.Magic
Monsters: Which use RUB – 5 shown
Minibosses are only found in repeatable set encounters; bosses are encountered only one time during the game; the final boss must be defeated to complete the game; superbosses are the most dangerous monsters in the game, but are optional
Name		 HP Gold
The total amount of experience earned for defeating this monster (this is split evenly among surviving party members)
Exp
Each physical hit will deal between one and two times this amount of damage to the target, reduced by the target's absorb
Dmg
The number of hit chances the monster gets whenever it attacks; each successful hit will deal full damage and can be a critical hit
Hits
The hit % of the monster's attacks; the base chance to hit is approximately 84% plus half of the monster's hit %, modified by the target's evade %
Hit %
The status ailment, if any, that can be inflicted by this monster's attacks; the base chance of affliction is 50%, reduced by 1% for each two points of magic defense the target has; note that, due to a bug, misses after the attack's first hit have a chance to inflict a status ailment despite not hitting
Status
The chance of each of this monster's attacks being a critical hit (unless the attack misses); critical hits add double the monster's damage rating to their normal damage (this extra damage ignores absorb)
Crit
Each physical hit the monster takes will have its damage reduced by this amount
Abs
The monster's base chance to evade any given physical attack; each two points of evade % result in a 1% better chance to evade attacks
Eva
For each two points of magic defense, the monster has a 1% better chance of resisting any given spell
Mag. Def.
The lowest party level at which the monster may choose to run away; the chance to run is approximately 4% for each level the party leader is above this level
Run Lev.
The chance that the monster uses a magic spell on its turn; each monster that can cast spells has a specific cycle of spells that they always use in the same order (see the monster page for specifics)
Magic
The chance that the monster uses a special attack on its turn; monsters with multiple special attacks have a specific cycle of special attacks that they always use in the same order (see the monster page for specifics)
Sp. Att
The families this monster belongs to; only Undead monsters are affected by HARM spells; note that other monster families have no mechanical effect
Family
The elements this monster is weak against; weakness against an element causes spells and special attacks of that element to be approximately 20% more likely to hit, and damaging spells or special attacks deal an additional 50% damage
Weakness
The elements this monster is resistant to; resistance to an element drops the base hit chance for spells and special attacks of that element to 0, and those attacks cause half damage
Resists
ASTOS 168 2,000 G 2,250 26 1 104 - 1% 40 39 85 - 75% - - - -
MAGE 105 1,095 G 1,095 26 1 97 - 1% 40 39 85 - 50% - Spellcaster - -
KARY 700 1 G 2,000 60 6 115 - 1% 60 30 92 - 38% - Magic Beast, Spellcaster - Poison, Fire, Cold, Lightning
PHANTOM 360 1 G 1 120 1 158 Paralysis 20% 60 12 80 - 50% 25% Magic Beast, Undead, Regenerating Fire Status, Poison, Death, Cold, Earth
EYE 162 3,225 G 3,225 30 1 104 - 1% 30 6 46 - 63% 23% Spellcaster - Earth
QAKE STUN

Related

BRAK

Sprite
Hit % 115%
Type Black Magic LV 7
Effect Inflicts Poison-elemental Stone on one foe
Target One foe
Element Poison
Inflict Status Stone

Learned by

WM
RM
BM
Kn
WW
RW
BW
Ni
Sold In Gaia (45,000 G)
BRAK is a significantly better single-target Death Spell than RUB: it's more accurate, and it's Poison-elemental, making it useful against a different set of enemies. It's even got a good chance of killing TIAMAT the first time you fight her! It's far from the worst level 7 Spell.

XXXX

Sprite
Type Black Magic LV 8
Effect Automatically inflicts KO on one foe with less than 300 HP unless they are resistant to Death-elemental attacks
Target One foe
Element Death
Inflict Status KO

Learned by

WM
RM
BM
Kn
WW
RW
BW
Ni
Sold In Gaia (60,000 G)
XXXX is the third in the line of "Power Word" spells that only work on Monsters with less than 300 HP. Unfortunately, it doesn't work on Monsters resistant to Death, and there aren't a lot of sub-300 HP Monsters you're going to want to use this Spell on. 300 HP isn't a lot to go through by the end of the game anyway. XXXX is anticlimactic at best.

Battle with ASTOS

The CROWN and the Mystic KEY
Page 4
The King of the Northwest Castle reveals himself to be ASTOS, who has the CRYSTAL you need.

Crescent Lake

The ORB of Fire
Page 1
Travel to Crescent Lake where the Circle of Sages give you the CANOE so that you can pursue the Fiend of Fire.

The Ice Cave

The AIRSHIP
Page 1
Explore the Ice Cave to discover the FLOATER that powers the AIRSHIP.

Temple of Fiends Past

The Final Battle
Page 2
Return to the Temple of Fiends and warp to the Temple of Fiends Past to begin your final quest.

Reaper

Type Black Magic
Level 6
Effect Instantly kills a foe.
Hit Rate 96%
Target One foe
Element Death
Status KO
Price 20,000 gil
Sold In Crescent Lake

Learned By

WM
RM
BM
Kn
WW
RW
BW
Ni
Reaper is a single-target instant KO Spell that isn't particularly accurate. Further, a lot of Monsters (including all Undead) resist Death Spells. It's a fun Spell to cast, but it's really not very good. Quake is the same level and hits multiple targets, though many creatures resistant to Earth are not resistant to Death. Either way, you're probably better off saving a level 6 Spell slot for some other use.

Death

Sprite
Power 5 Accuracy +10%
Type Black Magic
Effect Inflicts death-elemental KO on the target
Status KO
Element Death
Tome Death Tome
Effect Death 6 (All enemies)
Value 5,000 gil
Sold In Jade Passage B3 (10,000 G)
Found In Castle Fynn Treasure Rooms
Dropped By Sorcerer
Used By Astaroth, Imperial Shadow, Sorcerer
Death is another KO Spell completely overshadowed by Toad. It is of a different Element, but every Monster resistant to Matter also resists Death and then some, and Death is less accurate than Toad to boot! This is another redundant Spell you shouldn't bother learning or casting if you've got Toad or Break, both of which are better.

Death

Type Black Magic
Level 8
Effect Inflict KO
Status Ailment KO
Base Power 0
Base Accuracy 35%
Price 60,000 gil
Value 30,000 gil
Reflectable No
Target One Enemy

Cast By

Death

Type Black Magic
Effect Inflict KO
Status Ailment KO
MP 35
Base Accuracy 60%
Reflectable No
Target One

Learned By

Doom

Dispatches an enemy
Spell Type
Icon
Attack
Learned Shoat ×2
Target One Foe
MP Cost 35
Hit Rate 95 (resisted with Stamina)
Misses targets immune to Wound
Can be absorbed with Runic
Can be reflected with Reflect
Status Wound
Used By Allo Ver, Allosaurus, Black Drgn, Bloompire, Displayer, Doom Gaze, L.50 Magic, MagiMaster, Necromancr, Samurai, Sky Base, SrBehemoth, Veteran
Doom is your first Wound Spell, potentially instantly removing a target from the battlefield. Monsters get three chances to resist it, though: once because of its slightly low Hit Rate and a second time with Stamina, presuming it isn't just immune to Wound in the first place. Since most of the Monsters you'd want to use Doom on are, it finds limited use.

The one exception is when taking advantage of the Clear bug. Any Clear Monsters are automatically hit with Spells, bypassing even Wound immunity. Doom is the first Spell you learn that can take full advantage of this bug.

Death

Type Magic
Reflectable Yes
Description Causes sudden death
MP 30
Attack% 100%
Target One/all enemies
Status Effect Add: Death (43%)
Materia Destruct L3, Master Magic

Death Stone

Type Tool
Description Same effect as Death
Value 5 gil (7 gil with the Sell-High menu ability)
Used in Battle Yes
Using a Death Stone in combat has the same effect as casting the Death Spell.

Death

Type Indirect
Description Cause Death
Status KO
HP-J ×100 1,800 hit points (14th)
Str-J ×100 22 strength (16th)
Vit-J ×100 22 vitality (19th)
Mag-J ×100 38 magic (9th)
Spr-J ×100 58 spirit (7th)
Spd-J ×100 10 speed (20th)
Eva-J ×100 4 evade (10th)
Hit-J ×100 10 hit (23rd)
Luck-J ×100 38 luck (2nd)
ST-Atk-J ×100 KO 100%
Draw Difficulty +34

Death

Type Status Ailment
Description Slay target instantly, dealing magic damage instead if unsuccessful.
ATB Cost All
Role Saboteur
Status Effect Death
Chapter 12