Wondering about Necro "rotation"

[Tecmos Deception]

I doubt anyone will have some magical tool that tells you exactly how to play your necro at any given level for any mob you might find at that level. If you look a little bit though, you'll find a spreadsheet of necro spell efficiencies in this forums section.

I think most 50+ necros keep their pet on a leash enough to make sure they do over half damage personally or use charm and charm breaks to ensure full xp for kills.