Most of the time I do solo Faction Trails fo EC. For me its the fastest source of EC. Since last patch the reward for faction trial is even high. Normally I make 1k EC per hour with 2 ids on at a time. There are lot guides for faction trials. But you will find shortcuts once you start doing it. In my opinion 1 seeker is the must for trials
is the twilight chest opening per day limit 50 per toon or 50 per account?