Just curious how much tenacity you're running on Magmatrooper in p1, if you're doing that team. Mine's only at G8, but we're only doing T4 so I figure that should even things out--except my Magmatroop...
I have mine at 87ish % tenacity, it's include the mod, but don't include the unique. So he literally have +100% tenacity. My magma at g8, with 3x tenacity set. Seems he working well resist defence down debuff.