So a few wars back I noticed something my Diablo started getting damaged from poison on the hazard shift node. Which I've taken with Diablo before. So my alliance started doing testing. Couldn't find a hazard shift node to test it on but they did try a basic fight Diablo VS Diablo and as you can see he's taking damage from poison. So this bug needs to be fixed ASAP
@Kabam Miike 
I have the full video but it said it doesn't support the format