write the number of tries .. either yours, or the number number of tries for your fire team (x3) and the number of elemental primaries you seen dropping.. here its i have seen 15/0 5 runs 3 guys = 15 tries, noone got anything from skolas, except two elder ciphers edit: seems to be currently on 15% drop chance edit 2: after all the contribution the rate is at 12,69% so basically one every 10 runs and it ist VERY unevenly distributed.. some have lower han 5% droprate while others have 30% and more.. edit 3: got wolves leash II (void , and horribly crappy scout with "shank burn" .. t(-.-t) ) yesterday so its 18/1 . edit 4: seems as the trend reverses and the drop rate increases over the last week.. alsthough its still at around 10%