Copperfield Illusion With a Blade and a Box

Puzzle 15 of Valuable Things Hard Pack

Question is: Copperfield Illusion With a Blade and a Box

and the answer is: DEATHSAW

Word Meaning:

DEATH — The cessation of life and all associated processes; the end of an organism's existence as an entity independent from its environment and its return to an inert, nonliving state.

Definitions from Wiktionary.