Gam3Junkie Hi, bone prison's walls count as minions and it spawns many at once, so you can use this to buff the wraithlord (assuming they havent changed this mechanic). I've never played that version myself but I'll share what I know, please take it with a grain of salt.
If you want to use that, you should go lowlife ward. Drop Aura of Decay, pick Bone Curse and spec Transplant tree to autocast Bone Curse. Lots of lowlife necro builds around so nothing new there. Exsang, last steps, frostbite shackles, + some ward retention from tree. However, you NEED at least LP1 last steps with "transport your minions" prefix. You can of course play without the minion transport but in my opinion Wraithlord feels absolutely horrible to play without that, because AI.
On a life version like I'm running, I don't think it is worth it. First, you won't survive as life based necro without Aura of Decay. Second, there is no content below 500 corruption that really requires Wraithlord to deal more damage. That damage is only necessary beyond that and at that point you want to be ward-based anyway.