looks like blizz wnt to make us more viable in pvp but their don't know how,so...
demonic circle: remove all stun poison and bleeding effect
shadow yard: (it is the worst and useless spell in the game,it only advantage destro in mirror with affliction or vs dk unholy) so lets change shadow yard in shadow shield.
shadow shield: 5 seconds immune vs physical attak 2 min cd
why those changes are needed?
the main problem as warlock are rogues and warriors
they just have more cd than us so if they manage their cd there is now way for win (obviusly is theory where rogue and lock got same skill and gear)
that is why we need the teleport change.
warrior:when your teleport is in cd the warrior charge u + bladestorm and u are fuked.
that is why we need the shadow shield
those changes are USELESS vs casters and healer but allow warlock to be less crappy vs melee