abjuration, magical
- Price: dependent
- Bonus Value: dependent
Each time you are hit by a critical hit while wearing fortification armor, attempt a Flat DC check. If you succeed, that critical hit becomes a normal hit. This property thickens the armor and increases its Bulk by 1. Unless otherwise listed, a fortification rune is a rare item.
- Basic (4,750 silvers, +3). Flat DC 17 check.
- Greater (13,000 silvers, +5). Flat DC 14 check. This item is legendary.