Basuna

Basuna is a recurring White Magic spell. It cures status ailments that normally wear off over time or at the end of a battle.

Final Fantasy II
Basuna (translated as Peep in the Neo Demiforce fan-translation of the Famicom version) is a White Magic spell. At level 1 the spell will only be able to remove the Venom status. At level 2 Basuna will be able to heal Sleep, Silence can be removed at level 3, Mini at level 4, Paralysis at level 5, and finally Confuse at level 6.

In addition the chance of success increases as the level of the spell increases. It can target one ally or all allies, but the latter requires an additional level in order to remove the status (for example level 4 or higher to remove Silence) and the success rate is much lower unless the spell is at a high level. Any character can learn Basuna by having them use the Basuna Tome (called the Basuna Scroll in the Origins release).

Final Fantasy IV
In Final Fantasy IV, it is usable via the Mythril Staff. It effectively acts as a Unicorn Horn by removing Berserk, Confuse, Sleep, and Paralyze, but only targets one character.

Final Fantasy IV -Interlude-
Basuna returns as a Item Magic spell via the Mythril Staff in the sequel of Final Fantasy IV. It removes Berserk, Confuse, Sleep, and Paralyze on one target.

Final Fantasy IV: The After Years
Basuna returns, usable via the Mythril Staff. It possess the same effect from its predecessor.