This is the tome of Oblivion and a complete list of all statuses and their effects.
NON-Oblivion Tome effects
Barrier - Defense raised by 50%
Berserk - Damage doubled and enemy attack targets randomized. Cannot use magic.
Confu - Attack targets are randomized
Critical - HP is <= 20% of max HP
Darkness - Target's accuracy for physical attacks is reduced to 50%
Death - Instantly kill
Death Sentence - Same as [Doom]
Doom - Counter for 60 seconds appears. In 3 turns, target dies.
Freeze - Same as [Stop]
Haste - Target attacks twice every other turn
Mini - Damage reduced by 50%
M. Barrier - Magic defense raised by 50%
Poison - HP is reduced by 1/16 every turn
Petrify - Target does not take a turn. In 5 turns, target is killed
Peerless - Invincible to all forms of damage
Reflect - Nullify magic cast on you randomly, cast the same magic at the caster.
Resist - Nullify status effects.
Silence - Cannot cast magic
Sleep - Target skips next turn
Slow - Target skips every other turn
Stop - Target does not take a turn
Toad - Target deals 50% physical damage and cannot cast magic. Despelled within 3 turns.
Oblivion Tome effects
Atheist - Target cannot summon
Bubble - Max HP is doubled
Brave - Attack increased by 50%
Decoy - Target ally is the target for all enemy attacks and effects
Itchy - Target takes 300% more damage from Lightning
Faith - Magic attack increased by 50%
Float - Earth based attacks miss
Oil - Target takes 300% more damage from Fire
Old - Target temporarily loses their latest job ability
Reverse - Healing and damage have their effects reversed
Regen - Heal 1/16 max HP each turn
Seizure - 1/4 of max HP is lost and given to the caster each turn
Trouble - Target shares 50% damage inflicted with their entire party
Weight - Reduces target's evasion to 0.
Vit 0 - Defense is minimal, all attack against target ignore defense.
Zombie - Curative items and magic damage the target
NON-Oblivion Tome effects
Barrier - Defense raised by 50%
Berserk - Damage doubled and enemy attack targets randomized. Cannot use magic.
Confu - Attack targets are randomized
Critical - HP is <= 20% of max HP
Darkness - Target's accuracy for physical attacks is reduced to 50%
Death - Instantly kill
Death Sentence - Same as [Doom]
Doom - Counter for 60 seconds appears. In 3 turns, target dies.
Freeze - Same as [Stop]
Haste - Target attacks twice every other turn
Mini - Damage reduced by 50%
M. Barrier - Magic defense raised by 50%
Poison - HP is reduced by 1/16 every turn
Petrify - Target does not take a turn. In 5 turns, target is killed
Peerless - Invincible to all forms of damage
Reflect - Nullify magic cast on you randomly, cast the same magic at the caster.
Resist - Nullify status effects.
Silence - Cannot cast magic
Sleep - Target skips next turn
Slow - Target skips every other turn
Stop - Target does not take a turn
Toad - Target deals 50% physical damage and cannot cast magic. Despelled within 3 turns.
Oblivion Tome effects
Atheist - Target cannot summon
Bubble - Max HP is doubled
Brave - Attack increased by 50%
Decoy - Target ally is the target for all enemy attacks and effects
Itchy - Target takes 300% more damage from Lightning
Faith - Magic attack increased by 50%
Float - Earth based attacks miss
Oil - Target takes 300% more damage from Fire
Old - Target temporarily loses their latest job ability
Reverse - Healing and damage have their effects reversed
Regen - Heal 1/16 max HP each turn
Seizure - 1/4 of max HP is lost and given to the caster each turn
Trouble - Target shares 50% damage inflicted with their entire party
Weight - Reduces target's evasion to 0.
Vit 0 - Defense is minimal, all attack against target ignore defense.
Zombie - Curative items and magic damage the target