abysmal - Nightmare and dead is dead ladders/mode require a very different play style. You have to look at the entire board every turn just like chess. Have a good understanding of the underlying math (Read and re read the combat mechanics thread), plan a couple turns ahead and play conservatively. Unlike other ladders where pushing the limits to avoid camping trips to boost your score is good. On a dead is dead ladder: when in doubt camp. Also do not overlook farsight /sly look. I always drop one talent point in it early, this way I can see what is coming and from where in the next turns. This game is very well balanced, so I think a lot of different team builds will be viable in this ladder. A tactical sense and careful play are the most important factors.