Drain (ability)

Drain is a recurring Black Magic spell from the series. It absorbs HP from the target and gives it to the caster. Like healing magic, it works in reverse against the undead. When it is cast upon the user, it will always miss.

Final Fantasy III
Drain is a Black Magic Level 7 spell can only be bought in Doga's Village in The Invisible for 20000 gil. Only Black Mages, Sages, and the Onion Knight can cast it.

Final Fantasy V
Drain is a Black Magic Level 5 spell only a Black Mage can cast it or a Mystic Knight can use its power to use Drain Sword. There is also a Blue Magic with the same function called Vampire or Red Feast.

Final Fantasy VI
The Esper Ifrit teaches Drain at a rate of X 1.

Crisis Core
Three Drain spells are included in this game Drain, Drainra, and Drainga they all have HP+10% and Drain different amounts of HP.

Final Fantasy VII
Drain is a normal spell that steals HP from the enemy and heals the caster it can be refined from Life Magic Refine by using Vampire Fangs.

Final Fantasy IX
Vivi can only cast this spell or Steiner can use Drain Sword from the Magic Sword command.

Final Fantasy X
Drain is a Black Magic it is located on Wakka's side of Sphere Grid and can be learned for all characters.

Final Fantasy X-2
Drain is a Arcana ability for the Dark Knight Dress Sphere it costs 20 AP to learn and 8 MP to cats or can be used from Covetous Garment Grid after going through the Blue Node on it.

Final Fantasy XII
Drain can only be cast when its required license on the License Board has been learned. Anyone in the party can cast this spell and it can only be bought on any Public Airship or from certain Vendors.

Final Fantasy XII: Revenant Wings
Drain doesn't make it as a spell appearance, but it is replaced by the ability Lancet, only Llyud can use this ability.

Final Fantasy Tactics
Drain is a Spellblade ability for the Templar class used by Beowulf Cadmus.

Final Fantasy Tactics Advance
The Energy Mace teaches Drain to the Sage for 100 AP.