I'm probably missing something obvious here, but I can't find any explanation about the achievement system, particularly about how Intruder-Count achievements are gained. Things like "saboteur award" are not very self-explanatory. The dragon apprentice award is obviously about using dragon cards, but what conditions are taken into account to get the award? Using a Dragon keyword card on the last turn of the match, provided that you won? And what are the other "get X awards" achievements about?