i asked a while back about this item of the adventure log. and now, after a lot of effort (well just a lot of bus rides to work) i can say that you have to make each pokemon the leader on a trip to a dungeon. i went through tiny woods over 400 times with each pokemon (it includes all individual unowns - i know because i left them to last to check) and it was so boring.
still no sign of
for me though
where are you munchlax - hurry up so i can finish my log.......