Detect Magic

Action or Ritual | Self | V/S | Concentration, 10 min

For the duration, you sense the presence of magical
effects within 30 feet of yourself. If you sense such
effects, you can take the Magic action to see a faint
aura around any visible creature or object in the area
that bears the magic, and if an effect was created by
a spell, you learn the spell's school of magic.

The spell is blocked by 1 foot of stone, dirt, or wood;
1 inch of metal; or a thin sheet of lead.