Necro Back after break (no ideas which spells to use)

[Tonikola]

Hey guys/gals, I'm trying to get back into the groove of things with my 53 necro on green but I can't for the life of me remember which spells I should be using (specific names). Which dots are my go-to's? Should I be downranking my slows (I sort of recall doing that). Just trying to remember what the most efficient "rotation" was for this level range.

Any help would be greatly appreciated!