HotDQ - Marpenoth 23, 1489 DR

-Casting Time: 1 bonus action
-Duration: Conc., up to 1 hour
-Range:90 feet
-Components:V
Until the spell ends, you deal an extra 1d6 damage to the target whenever you hit it with a weapon attack, and you have advantage on any Wisdom (Perception) or Wisdom (Survival) check you make to find it. If the target drops to 0 hit points before this spell ends, you can use a bonus action on a subsequent turn of yours to mark a new creature.

Sleep
1 enchantment
Casting Time: 1 action
Range: 90 feet
Components: V S M (A pinch of fine sand, rose petals, or a cricket)
Duration: 1 minute
Classes: Bard, Sorcerer, Wizard
This spell sends creatures into a magical slumber. Roll 5d8; the total is how many hit points of creatures this spell can affect. Creatures within 20 feet of a point you choose within range are affected in ascending order of their current hit points (ignoring unconscious creatures). Starting with the creature that has the lowest current hit points, each creature affected by this spell falls unconscious until the spell ends, the sleeper takes damage, or someone uses an action to shake or slap the sleeper awake. Subtract each creature’s hit points from the total before moving on to the creature with the next lowest hit points. A creature’s hit points must be equal to or less than the remaining total for that creature to be affected. Undead and creatures immune to being charmed aren’t affected by this spell.