Hunter's Quarry
3rd-Level Ranger Feature
Starting at 3rd level, using a bonus action, you can choose a
creature you can see within 90 feet and mark it as your
quarry. You have advantage on any Wisdom (Perception) or
Wisdom (Survival) checks you make to find it. You can have
no more than one quarry at a time. It lasts for as many hours
equal to half your ranger level. You can dismiss this effect at
any time as a free action.
Additionally, once per turn, whenever you hit your quarry
with a weapon attack, it takes an extra 1d8 damage.