Ultimate Adventurer's Handbook
Fool’s Gold
0-level (Cantrip) Conjuration
Casting Time: 1 action
Range/Area: Touch
Components: M
Materials: 1 gold coin
Duration: Concentration, up to 24 hours
When you cast this spell, you enchant the coin you used as the material component for this spell. At any point before the spell ends, you can summon the coin back to your hand. Doing so ends the spell.
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.