Just to help some of you out Mindbenders is much more likely to drop if you reach 100,000 points. We tried it without modifiers at least 10 times and got maybe 1. As soon as we threw on the modifiers and were consistantly getting 100,000 to 200,000 points we got at least 1 mindbenders every other time. Also if you're working on graviton lance catalyst ot sunshot catalyst I recommend you set this strike to your guns respective element, go in with some friends and whenever the boss goes into his cave and enemies start to spawn go up the stairs on the right or left and stand in a line with the person working on the catalyst closest to the enemies spawning. Let them do all the shooting. This will make those big multikill catalysts a breeze!