Chainsaw (ability)

Chainsaw, also known as Chain Saw and Spinning Saw, is a recurring ability in the series. It is most often associated with Edgar as one of his strongest abilities.

Final Fantasy VI
Chainsaw is an ability usable by Edgar once the Chainsaw item has been obtained and is in the player's inventory. It deals physical damage to one opponent with an attack power of 252, is unblockable, and ignores defense. It has 25% chance of inflicting Death instead of dealing damage and works against undead enemies, but fails on targets immune to Death. The Death attack is considered a magical attack.

Crisis Core -Final Fantasy VII-
Spinning Saw is an enemy ability used by Chain Machine and Cutter Machine. It inflicts 4 hits of non-elemental physical damage and Stun for 2 seconds to Zack.

Etymology
A or chain saw is a portable, mechanical saw powered by electricity, compressed air, hydraulic power, or most commonly a gasoline two-stroke engine.