Greater Fireball Rune

Level 7Hazard
HazardMediumLegacy
AC
0
HP
0
Speed
0 ft.
Perception
+0
Fort
+0
Ref
+0
Will
+0
Stealth
+17
Recall Knowledge DC 23 (arcana)
Disable DC 25 thievery (expert) to erase the rune without triggering the sensor, or Dispel Magic (4th rank; counteract DC 23) to counteract the rune

An invisible rune creates an invisible, spherical magical sensor with a 20-foot radius.