Heartstop 2014
2nd-level necromancy
You slow the beating of a willing target’s heart to the rate of one beat per minute. The creature’s breathing almost stops. To a casual or brief observer, the subject appears dead. At the end of the spell, the creature returns to normal with no ill effects.
Source: Deep Magic for 5th Edition (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details