Forced - If 6 or more Seafloor locations are revealed and not flooded: Flip Barrier Core.

Decrease the flood level of Barrier Core and choose an adjacent eligible location: Increase the flood level of the chosen location. Then, place 3 clues on it. (Group limit once per round.)

Forced - If there are 5 or fewer unflooded Seafloor locations: Flip Barrier Core.

Spend 2 clues, as a group: Put the set-aside Barrier Node story asset into play under your control.