Sleep

Sleep is an arcane spell that allows the user to induce magical slumber in a target creature or creatures for up to 1 minute. It is considered a fairly commonplace and basic spell for professional and capable mages.   This spell is curiously limited by what arcanists have called a target's 'vital spirit' - the more vital spirit, the harder it is to target them. This vital spirit seems to be linked to one's endurance and physical vitality; injured, exhausted, and sick creatures typically have less. While some people have tried to use this spell to measure vital spirit, the spell itself is somewhat randomized based on the performance and skill of the caster, which often varies from casting to casting based on turbulence in the flow of magic.    Kipilu of Tezitkal and Arzet Devadov both know this spell.