Spell Details
Casting Time
Turn
Range
Touch
Duration
30 minutes, plus 5 minutes per level
Target
40-foot radius area
Saving Throw
None
Effect
You cause the earth to rise and reshape into a fortress-like structure with 15-foot walls, ramparts, and defensive positions. The bastion provides total cover and has passages you designate. The walls have AC 17 and 200 hit points per 10-foot section.
Scaling
At 6th level, you can create a 60-foot radius bastion with 20-foot walls. At 9th level, the walls regenerate 50 hit points per minute, and you can create magical siege weapons that operate themselves.
Special Notes
This spell works only on natural earth or stone, not worked surfaces. The construction process is silent but clearly visible.