Wraithlord gets one-shot when using a traversal skill

My Wraithlord has Infernal Shade and Dreadshade attached. I also have the Locus of Death passive skill, along with a ring that allows my Wraithlord to teleport when I use a traversal skill. The problem is that my Wraithlord gets one-shot, even when it isn’t targeted by mobs, whenever I use a traversal skill.

I know Infernal Shade damages my Wraithlord over time, but even at full HP, using a traversal skill instantly one-shots it.