Once per day when you construct a tiny clockwork device, you can expend a 1st-level spell slot to choose a 1st-level spell you know that requires a saving throw and imbue the device with that spell. the chosen spell slot is used. The spell only remains potent until you finish a long rest.

When the spell activates depends upon which device you build. The spell is always cast immediately in front of the device and targets the closest creature, if the spell requires a target.

Clockwork Toy. Activates five turns after it is placed down. If the toy is destroyed before then, the spell dissipates.

Fire Starter. Activates when the flame is lit.

Music Box. Activates at the end of the song.