900 crystals later, one loss with all duels 7000+ many above 8000 (about 19 or 20 duels) with 10 from yesterday, still 0 promise and 0 rare value...I have 3 of the others from before. Sometimes this game is so stupidly infuriating. I played many hours today to get 900+ for basically nothing at all. FYI, I use a sylvan + ra deck, its fast and really consistent at 7000+, about half or more will be 8000+.
The Necrofear deck is more consistent when you replace 1 dark mimic lv3 with another defensive trap. I got 100% win and no skill, it's free farm. just getting draw sense light so far when i hope i will get extra,extra.