Suppose my opponent and I each have 1 HP left and we're both standing on lava. How do I know who is going to win?
From the Card Hunter Help page (The Order of Play, Start of Round Effects, c): "All terrain attachments that trigger at the start of the round resolve. These are checked from the bottom of the board to the top proceeding by column from left to right then by row from bottom to top." I'd prefer it if it had something to do with who passed first, e.g. squares with characters belonging to the player who passed first/second are checked, then the same for other player, then the other squares on the board as above. It would certainly be more complicated to program but it would also make it less arbitrary.