Cunning has recently seen an increase from 3 seconds to 10 seconds. That takes it from being a useless garbage trait into being an impressive contender that could literally change the meta! There is currently no indication that Cunning doesn’t stack. Therefore, if you were to stack 5 copies of Cunning at level 18 you would reduce the enemies energy gain by 60%! You could further take advantage of this by putting a Female Luxuriant on the team. Her passive causes ANY skill (from any ally) to reduce enemy energy gain by up to 50% This could put the enemy in a very rough spot, but it remains to be fully tested.