Sacrifice (ability)

Sacrifice, also known as Pep Up, Transfusion, Infuse, Fusion, is an ability that allows one party member to sacrifice himself/herself to help the party, by donating their remaining HP and MP. It is commonly used by Flan-type monsters.

Final Fantasy V
The Blue Magic Transfusion, or Pep Up, kills the user, and the chosen target fully recovers his/her HP and MP. If the caster of the spell is also its target, the caster dies, but recovers all of their MP. It costs 13 MP to cast. It can be obtained from the enemies Mythril Dragon, Calcruthl, Birostris, Devilfish, and Mover, as well as the boss Gargoyle. The player may utilize this ability by catching and releasing a Devilfish or Birostris.

Final Fantasy VI
Strago can learn Transfusion, also known as Pep Up, and it costs 1 MP to cast. It removes the user from battle permanently, but restores HP/MP to the chosen target as well as removing all negative statuses except KO and Freeze. Transfusion can be learned from Intangir, Junk and Mousse.

Gau's Rage, Intangir, also allows him the use of Transfusion.

Final Fantasy IX
Zidane can use the skill Sacrifice. It reduces his HP and MP to zero and fully restores the other party members HP and MP. It is learned from the Masamune and Exploda, costs 32 MP to use, and takes 55 AP to master. Unlike some incarnations of the ability, Zidane will not be removed from battle, leaving the remaining party members free to revive him at any time.

Final Fantasy XI
Sacrifice is a spell available only to White Mages in Final Fantasy XI. It must be cast on a party member, and when done, it will transfer one negative status ailment from the target to the White Mage.

Sacrifice is augmented by Afflatus Solace. While active, a White Mage can absorb up to seven negative status ailments. Afflatus Solace also increases the effectiveness of this spell by increasing the type of status effects that can be absorbed. Effects that will prohibit a White Mage from casting though (such as Silence or Petrification) will not be absorbed.

Sacrifice does not work on negative songs such as Elegy or Requiem. It does not matter if the the White Mage is currently affected by the same ailment (IE: both the Paladin and the White Mage are affected by Frost. Sacrifice could still remove Frost from the Paladin).

Rather contrary to its name, Sacrifice will not absorb Doom.

Sacrifice is not affected by Divine Veil in any way.

Sacrifice can be helpful in using Esuna, since Esuna requires the White Mage to be affected by the status ailment in order to heal party members of the same ailment.

Final Fantasy XII
The Technick Infuse fully consumes a user's MP to set ally's HP to 10 times the amount of sacrificed MP. It can be bought from Rabanastre, Nalbina Fortress, Jahara and Archades for 2000 gil and costs 35 LP on the License Board. In the International Zodiac Job System version, the Uhlan, Knight, Breaker, Archer and Mononofu jobs have this ability unlockable on their License Boards.

Final Fantasy XII: Revenant Wings
Transfuse is an ability for Llyud. It consumes some of his HP to restore the HP of an ally.

Final Fantasy Tactics Advance
Flans can use Sacrifice to fully heal the HP of a target at the cost of being KOed.

Final Fantasy Tactics A2: Grimoire of the Rift
Flans can use Merge to fully heal the HP of a target at the cost of being KOed.

Theatrhythm Final Fantasy
Sacrifice comes in three levels of power and acts similar to Souleater, increasing the character's Strength but lowering their max HP. Sacrifice Lv 1 increases Strength (+30 in 3DS, an additional "S" in iOS) but lowers HP by 500, Lv 2 grants extra Strength (+50 in 3DS, an additional "S" in iOS) but at a 750 HP penalty, and Lv 3 increases Strength by 95 but lowers HP by 1000. Warrior of Light, Kain and Squall learn all three levels of Sacrifice, while Onion Knight learns Lv 1 and Lv 2.