Have shaman on follow, play from rogue window and dont have them in a group. Put the macro below to shaman keybind 2, leave that keybind empty on rogue. Use the macro on mobs by clicking 2 from the rogue window and when they run closer to you, oneshot them with your rogue by using other binds than keybind #2.
Code:
/assist roguename
/cast lightning bolt
I would like the rogue go on the mobs and attack him and when the mob is dead, he follow again the shaman. And honestly my macro skill is not very high so if you have any idea to do it i'm interested.
You can't do this on TBC servers, you need IWT key which wasn't in the game before wotlk. Shaman on follow, rogue on the front.