Hunter's Mark

Level: 1

Casting Time: 1 bonus action

Range: 90 feet

Duration: Concentration, up to 1 hour

You touch one willing creature. Once before the spell ends, the target can roll a d4 and add the number rolled to one ability check of its choice. It can roll the die before or after making the ability check. The spell then ends.

Source: PHB, page 251. Available in the SRD.