Deathsickle

Deathsickle is an attack used by the Glum Reapers in Super Mario RPG: Legend of the Seven Stars. Deathsickle, if not blocked properly, can instantly defeat a party member.

Trivia

 * Deathsickle's name is a pun on "popsicle", a frozen snack, and "sickle", a type of weapon.