Sorry for my English.
In my opinion the necro must be slow but everyone shoulded pull from him and suffer. The Necro should bring the panic in an enemy team. Everyone should despise the necro. He needs something in radius that bothers the enemy. Our condition do a really low damage and our condition duration is pointless everyone at the moment remove more condition thaN that i can put on them.
Arenanet have mistake everything with the Necro. Sometime is better do something ex novo than try to repair.