Detect Magic

1st-Level Divination (Ritual)
Casting Time: 1 action
Range: Self
Components: VS
Duration: (C) 10 minutes

Effect. For the duration, you sense the presence of magic within 30 feet of you. If you sense magic in this way, you can use your Action to see a faint aura around any visible creature or object in the area that bears magic, and you learn its school of magic, if any.

Special. The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.

At Higher Levels.

3rd or 4th level: The duration is 1 hour.
5th or 6th level: The duration is 8 hours.
7th or 8th level: The duration is 8 hours, but the range within which you can sense things is expanded to be within 100 feet of you.
9th level or higher: The range within which you can sense things is expanded to be within 300 feet of you.

Source: PHB 231, SRD

Changelog

Added upcasting option.