Thunderstone Cascade Trap
Level 7HazardHazardUncommonMediumLegacy
AC
26
HP
54
Speed
0 ft.
Perception
+0
Fort
+15
Ref
+13
Will
+0
Stealth
+15
Recall Knowledge DC 25 (arcana)
Disable DC 27 thievery (expert) to safely cut the trip wire
A trip wire halfway up the stairs releases half a dozen spherical thunderstones that bounce down the stairs and explode.