Final slot for [Magnetic Capacity] which gives you magnetic, but you could tbh combine the [Malignant Force] slot and the empty one for another combination element, which you'd then run alongside the innate cold and then the radiation. Or you could remove [Radiated Reload] as well and just run three base statuses, leaving you with the first two combined and then the last one combined with the innate cold, for another combo! Really up to you, I just chose the most number of and least likely elements I'm gonna use, but along with viral, in the case I'm not running Nourish, which is most frames.