Operation

Modification Magic: Operation (改造魔法『オペレーション』) is a Modification Magic spell.

Description
With an open grimoire, the user holds out their hands and magical strands extend from their fingers. These strands can then manipulate whatever they touch. The main two functions are disassembly (分解), which breaks apart structures and creatures into pieces, and reassembly (結合), which recombines things as the user wishes, with stitches forming along the seams between the pieces.

This spell's third function, "Dismantle", allows the user to create arms-like extension which are capable of disintegrating anything it touches in a quick succession, including people and magic.