When cast on an inorganic opening (doorway, medium hole, archway, etc.) less than roughly 20 feet square, the opening will reject any item that would otherwise pass through the opening for one day. The result is that the object, no matter the weight, is thrown 3d6ft directly away from the opening. The resulting throw does no damage. This effectively makes the opening invisibly impassible unless the spell is dispelled. If cast at the same time 5 days in a row, the spell is permanent unless dispelled.
If desired, the spell can be cast on multiple openings within a 60ft radius by adding 20 minutes for each opening affected.
For each additional spell slot level, the range increases by 10ft.
Note: The spell cannot be cast in the middle of a long tube, for example at an arbitrary point in a hallway. If a caster attempts to cast the spell on a long tube in the middle of the tube, it will try and attach itself to the closest end within a 60ft radius in the direction the caster is facing. If there is no end to the tube in that range, the energy will bounce back after 10 minutes and hit the caster, throwing them 1d6ft and doing 1d4 force damage.
* - (a door handle or hinge)
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