Warp Sense

level 2 - divination

Casting Time: 1 action

Range: Self

Components: V, S, M (a razorvine leaf)

Duration: Concentration, up to 1 minute

Description not available (not OGL).
But here is a summary:

You sense portails within 30 ft. and can learn the destination plane and what key it requieres.

Sorcerer

Warlock

Wizard

Settings (Planescape)