Top four images: Chaos uses the Rending Draft to kill Bishop Mandible, in Lucasfilm Games’ 1990 graphic adventure LOOM, written by Brian Moriarty.

Bottom five images: Master Goodmold uses the Unmaking Draft, silently, to kill himself, later in LOOM.

Both the Unmaking Draft and the Rending Draft are mentioned in the Book of Patterns which was included with LOOM.

As far as I’m aware, only two sources correctly identify the draft used here by Chaos, and later by Bobbin in the game’s finale:

1) the narrative walkthrough, supposedly written by Bobbin Threadbare, in the original LOOM hint book from 1990;

and 2) Brian Moriarty’s talk about LOOM at the GDC 2015 conference.