I have been under the impression i should be spaming LS from 50-120 basicly
i have belived that thus far but from about 90-my current 109 it has become alarmingly tedious is there a better way then killing normaly and hitting with LS on every hit on what ever mob?
The short answer is no, there isn't really a better or less tedious way.
Counter attack and lightning strike the quickest way to get to 120.
What to bear in mind though, is you can train it anywhere there is a target to hit. You can get to 120 in Doom, at a champ spawn or in your house lightning striking a tamed rabbit. The difficulty of the creature doesn't impact the gains.
So, you should be able to change it up and keep things interesting as you gain to 120.
Do things that will benefit your character. Lightning strike Gammans and collect horns from them, you can then use them to complete the heartwood quest that gives out high end weps and jewls, which no doubt your sampire would benefit from.