Detect Magic

Casting Time: 1 action Range: Self
Components: V, S
Duration: Concentration, up to 10 minutes
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.
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