Necros....

[Darlok]

They're very strong in a group if you're an individual who plays proactively. If you can keep the HOT on people who can use it, dispel it off yourself, rinse and repeat while maintaining good pet control and contributing good dps, groups will appreciate your presence.(especially the shaman) if there is no shaman, keep hp's on whoever needs them with the HOT. If you're a lazier style player I wouldn't pick necro.