Noah's Ark

The apocalypse tile will be set aside and replaced with the Noah's Ark tile. Each apocalypse turn, 1 random tile will be transformed into an ocean tile, and all ocean tiles on the board will transform 1 adjacent tile into an ocean tile. This will continue until the entire board (excluding the ark) is an ocean tile.

You take 15 damage each turn that you end in an ocean tile. Once the board is full of ocean, you begin to be pushed back a layer at the end of your turn as well.