Earthfast

Magic of Faerûn (Mag)Updated Forgotten Realms (3.0)

Earthfast is a D&D 3.5 spell (Transmutation) from Mag. On class lists for Druid (Level 2), Druid Variant (Level 2), Druidic Avenger (Level 2). Range or area: Close (25 ft. + 5 ft./2 levels); Saving throw: Fortitude negates (harmless, object); Duration: 10 minutes/level (D); Casting time: 1 standard action.

School
Transmutation
Casting Time
1 standard action
Components
V, S
Range
Close (25 ft. + 5 ft./2 levels)
Target
One stone structure or rock formation
Area
Up to 25 cu. ft./caster level
Duration
10 minutes/level (D)
Saving Throw
Fortitude negates (harmless, object)
Spell Resistance
Yes (object)

You reinforce a rock formation or stone structure.
The earthfast spell doubles the structure’s hit points and hardness.
The spell collapses if you move beyond the range of the spell.
This does not function on constructs.