Gate Seal

Forgotten Realms Campaign Setting (FRCS)Updated Forgotten Realms (3.0)

Gate Seal is a D&D 3.5 spell (Abjuration) from FRCS. On class lists for Bard (Level 6), Cleric (Level 6), Druid (Level 6), and others. Range or area: Close (25 ft. + 5 ft./2 levels); Saving throw: None; Duration: Permanent; Casting time: 1 standard action.

School
Abjuration
Casting Time
1 standard action
Components
V, S, M
Range
Close (25 ft. + 5 ft./2 levels)
Target
One gate or portal
Duration
Permanent
Saving Throw
None
Spell Resistance
No

You permanently seal a gate or portal.
Gate seal prevents any activation of the gate or portal, though the seal may be negated by a successful dispel magic cast upon the spell.
A knock spell does not function on the gate seal, but a chime of opening dispels the spell.
Material Component: A silver bar worth 50 gp.