Osmose - Final Fantasy II (Famicom) - Guides

Osmose

Sprite

Power 10 Accuracy +0%

Type Black Magic

Effect Drains MP from the target, giving it to the caster; the effects are reversed if used against Undead

Tome Osmose Tome

Effect Osmose 8 (All enemies)

Value 7,500 gil

Found In Mysidian Cave B5

Dropped By Wizard

Used By Hecteyes, Mega Parasite, Wizard

Osmose is one of the most potent spells in the game, allowing your black mage to easily regain MP and keep casting spells. The damage and healing are not displayed, but this spell is as powerful as Drain or Fire, and like Drain is non-elemental. Also like Drain, you can regain more MP than the target actually has left—Osmose even works on monsters that have no MP to begin with! Also like Drain, though, the effects of Osmose are reversed on Undead, and the spell's potential is maximized automatically. Remember that this spell will always get you at least 10 MP if cast on anything other than Undead. If all else fails, you can cast it on your own fighter. It's like an infinite MP pool!

Compare Osmose to other Spells

Monsters: Which use Osmose – 3 shown

You can freely check these boxes and their status will be saved for the next time you visit the site	Bosses must be defeated as part of the plot; rare monsters appear in trap rooms for the current map or area; the final boss must be defeated to complete the game; superbosses are the most dangerous monsters in the game, but are optional Name	The rank of the monster; the rank of any given encounter is determined by the lowest rank of any monster in that encounter; rank is used to determine how quickly skills progress toward the next level Rk	The monster's starting and maximum HP total HP	The monster's starting and maximum MP total MP	Each physical hit will deal between one and two times this amount of damage to the target, reduced by the target's defense Att	The number of attacks the monster makes when it attacks physically, and the accuracy of each of those attacks Acc	The status ailment or other effect, if any, that can be inflicted by this monster's attacks; if a monster inflicts multiple status ailments, all are inflicted at once; drain attacks always drain ¹⁄₁₆ of the target's total HP or MP per hit and have an opposite effect against Undead monsters Effect	Each physical hit the monster takes will have its damage reduced by this amount Def	The number of attempts a monster gets to avoid incoming physical attacks, and the evasion % for those attempts Eva	The number of attempts a monster gets to avoid mitigate the effects of offensive spells or abilities, and the magic defense % for those attempts Mag. Def.	The base chance a monster will flee from battle on its turn; this chance is increased when the party has more total HP than all remaining monsters Fear	The average gil value of the money or items this monster can drop when defeated Avg. Drop	The families this monster belongs to; Undead monsters are damaged by healing spells and reverse the effects of drain attacks used against them; some weapons get a +20 bonus to attack when used against certain monster families (this does not stack with the bonus for using an elemental weapon against a monster that is weak against that element) Family	The elements this monster is weak against; spells of these elements always have their maximum effect and deal double damage; elemental weapons get a +20 bonus to attack when used monsters weak against any of their elements (this does not stack with the bonus for using a weapon against a monster of a family it is especially effective against); a dagger (†) indicates that this monster also resists this element, so damage will not be doubled Weakness	The elements this monster resists or absorbs; absorbed elements are marked with an asterisk (*); spells of resisted elements are always fully resisted and deal half damage, whle spells of absorbed elements have no effect and heal the target; individual monster pages indicate which elements are resisted and which are absorbed Resists/Absorbs
	Mega Parasite	6	750	300	40	6×75%	Amnesia	50	1×65%	4×40%	−166%	1,800 gil	Flying	Ice	Mind
	Hecteyes	6	1,140	300	85	7×90%	KO	70	1×70%	5×70%	−166%	1,800 gil	Flying, Earth	-	Matter, Mind, Death, Body, Fire, Lightning, Poison*, Ice
	Wizard	6	540	190	40	1×75%	-	35	1×70%	4×60%	−135%	3,000 gil	Magic	-	-

Monsters: Which drop Osmose Tome – 1 shown

You can freely check these boxes and their status will be saved for the next time you visit the site	Bosses must be defeated as part of the plot; rare monsters appear in trap rooms for the current map or area; the final boss must be defeated to complete the game; superbosses are the most dangerous monsters in the game, but are optional Name	The probability that the monster will drop this particular item when it is defeated Drop Chance	The rank of the monster; the rank of any given encounter is determined by the lowest rank of any monster in that encounter; rank is used to determine how quickly skills progress toward the next level Rk	The monster's starting and maximum HP total HP	The monster's starting and maximum MP total MP	Each physical hit will deal between one and two times this amount of damage to the target, reduced by the target's defense Att	The number of attacks the monster makes when it attacks physically, and the accuracy of each of those attacks Acc	The status ailment or other effect, if any, that can be inflicted by this monster's attacks; if a monster inflicts multiple status ailments, all are inflicted at once; drain attacks always drain ¹⁄₁₆ of the target's total HP or MP per hit and have an opposite effect against Undead monsters Effect	Each physical hit the monster takes will have its damage reduced by this amount Def	The number of attempts a monster gets to avoid incoming physical attacks, and the evasion % for those attempts Eva	The number of attempts a monster gets to avoid mitigate the effects of offensive spells or abilities, and the magic defense % for those attempts Mag. Def.	The base chance a monster will flee from battle on its turn; this chance is increased when the party has more total HP than all remaining monsters Fear	The average gil value of the money or items this monster can drop when defeated Avg. Drop	The families this monster belongs to; Undead monsters are damaged by healing spells and reverse the effects of drain attacks used against them; some weapons get a +20 bonus to attack when used against certain monster families (this does not stack with the bonus for using an elemental weapon against a monster that is weak against that element) Family	The elements this monster is weak against; spells of these elements always have their maximum effect and deal double damage; elemental weapons get a +20 bonus to attack when used monsters weak against any of their elements (this does not stack with the bonus for using a weapon against a monster of a family it is especially effective against); a dagger (†) indicates that this monster also resists this element, so damage will not be doubled Weakness	The elements this monster resists or absorbs; absorbed elements are marked with an asterisk (*); spells of resisted elements are always fully resisted and deal half damage, whle spells of absorbed elements have no effect and heal the target; individual monster pages indicate which elements are resisted and which are absorbed Resists/Absorbs
	Wizard	5%	6	540	190	40	1×75%	-	35	1×70%	4×60%	−135%	3,000 gil	Magic	-	-

Treasures: Containing Osmose Tome – 1 shown

You can freely check these boxes and their status will be saved for the next time you visit the site	The map where the treasure is found Map	The specifics of where this treasure can be found Notes	The monsters guarding this treasure, which will attack when the treasure is opened Guarded By
	Mysidian Cave B5	Northwest treasure room	-