Rock Dome is a defensive move used by Roxy. It surrounds the user in a thick dome of rocks.
"The Disaster Master" Episode 9-11-- Used to shield herself from the collapsing mall
"A New Enemy" Episode 15-11-- Used to shield herself from the collapsing rocks from her rock wall.
"The New Hereos" Episode 1-11-- Used, on accident, to protect herself from the forest creatures
"Dreams in Timeville" Episode 7-11-- Used to protect herself from the land slides