Csilla Cave-In (CL 8)
Saga Edition Core Rulebook, page 3 (table of contents).
The underground ice caverns of Csilla shake and rumble, sending heavy blocks of ice crashing to the ground.
Type: Natural
Trigger: A creature or a droid in the ice cavern fires a weapon that makes noise; targets any creature, droid, or object in the area of the cave-in.
Attack: +10 vs. Reflex Defense
Damage/Effect: 2d12+1
Recurrence: Each round at the start of the target’s turn, as long as the target remains in the area of the cave-in
Skills:
Acrobatics (DC 28): As a move action, a character can make an Acrobatics check to gain a +5 circumstance bonus to Reflex Defense against a falling ice attack made against the character at the start of their next turn.
Perception (DC 23): A character notices that the roof of the ice cavern is unstable and believes that a loud noise could cause a cave-in.