2nd-level Divination (ritual)
Casting Time: 1 minute
Components: V, S
Duration: Concentration, up to 1 minute
In order for characters to use the gates that dot the planes, they have to be able to first find them and learn the various keys to open them. While you maintain concentration on this spell you may use your action on your turn to sense the location of any gate or portal, active or not, within 60 feet. Once a portal is detected, you can try to deduce where the other end discharges and the key required to use the portal, if any. Each piece of information requires a successful DC 15 Arcana check. If the portal is active, you have advantage on this check. If one fails, you cannot learn any further information about the portal.