Roulette

Roulette is a blue magic spell. It casts Death on a randomly chosen target on the battlefield, enemy or ally. In order to successfully learn the Roulette spell, the targeted character must be under the Auto-Life status to survive the instant KO.

Final Fantasy V
Roulette is learned from Azulmagia, Death Dealer, Disabler, and Shinryu.

Final Fantasy VI
Appears as a Lore for Strago.

Final Fantasy VII
Roulette is an Enemy Skill learned from the enemy Death Dealer. It randomly picks a target from all enemies and playable characters in battle and kills them instantly. Since Roulette is just as dangerous to the player as it is to the enemy, it is one of the least useful Blue Magics in Final Fantasy VII.

Final Fantasy IX
Learned from Veterans.

Final Fantasy Tactics Advance
Learned from Ahrimans.