This was the first time we played with both boxes and the Sand & Snow expansion. And I got to put my nice Broken Token insert to use. Everything is combined! Rewards, monsters, heroes, encounters, everything. It is very cool, by far my favorite co-op.
There are maybe too-awesome combos now with everything included. Or maybe we are just that good. Played through the first mission from Heart of the Mists, lost fairly quick the first time while we relearned the rules, then waltzed through the second time with the same characters.
The only thing we haven’t tried is the Valskyrr campaign system, about which I’ve heard iffy things. Still sounds cool, and boardgame campaigns are rad! Except when the holidays roll in and screw up everyone’s schedule.