Pvp defiler tank

Sosderosii

I want to make a pvp character that is very tanky, has low damage but is able to hinder the opponent's capacity to heal himself so bad that the little damage it does can eventually kill.

What would be the best class for this and what are some key abilities/sets/items that can make this work?

SneaK

Stamcro

EtTuBrutus

https://en.m.uesp.net/wiki/Special:EsoBuildData?id=109509 on a necro hybrid

Metemsycosis

Im doing stamcro with affliction 5 piece and lots of Aoe.