Hold Portal

Standard Action | V | Medium | 20 sq ft/level
1 Minute/level | None | No
This spell magically holds shut a door, gate, window, or shutter of wood, metal, or stone. The magic affects the portal just as if it were securely closed and normally locked. A knock spell or a successful dispel magic spell can negate a hold portal spell. Add 5 to the normal
DC for forcing open a portal affected by this spell.