Bloodhound

1st-level · Transmutation

Casting Time 1 action

Range Touch

Components V, S, M (a drop of ammonia)

Duration 8 hours

Classes Druid, Ranger, Sorcerer, Wizard

You touch a willing creature to grant it an enhanced sense of smell. For the duration, that creature has advantage on Wisdom (Perception) checks that rely on smell and Wisdom (Survival) checks to follow tracks.

At Higher Levels

When you cast this spell using a 3rd-level spell slot, you also grant the target blindsight out to a range of 30 feet for the duration.

Source: Deep Magic 5e · OGL/Open