Arresting Dark Weave

Thread Magic: Arresting Dark Weave (糸魔法『捕縛の隠糸 』) is a Thread Magic spell.

Description
With an open grimoire, the user weaves a large spider web out of thread. When an opponent touches the web, the threads wrap around them and bind them to the web.

The spell could also be used to catch falling allies.

Trivia

 * This spell is unnamed in the manga and anime.
 * In Black Clover: Quartet Knights, this spell is invisible to opponents and slows down their movement speed when they pass through it.