I know that the life bunker is really popular, but i've decided to use light as this negates the Liz weaknesses. any other advice for slann lores?
Life Bunker is boring TBH. If it weren't for the fact that Lore has the most broken magic nuke in the game (Strength test, most infantry are S3/4 at best, entire unit affected), it wouldn't be nearly as common. Also, if they shut down 'Throne' before you get it up, the entire Lore becomes less potent.
Shadow and Light are pretty good.
Shadow has a cannon (Pendulum), a nuke ('Pit' requires more finesse than 'Dwellers', point it at large units boosted or lone monsters/heroes unboosted), awesome hexes, and of course 'Mindrazor' for your Temple Guard. It also has good synergies with other Lores, something not many of the others do.
Light is more defensive, and it's gun-magic is less useful (although 'Burning Gaze' is always handy boosted for sniping Knights or Hydras). 'Speed of Light' and 'Birona's Timewarp' turns on god-mode, and they're AOE as well, unlike many buffs. When your Saurus are ASF with re-rolls at I10 with four attacks each, and Scar-Vets have eight attacks, enemy units melt.
Something that gets overlooked with all the nuke magic is the combo of Shadows 'Enfeeble' and Lights 'Net of Amyntok'. Cast 'Enfeeble' first, then hit them with 'Net'. Watch as they can't do anything, and by failing, they take automatic S4 hits. That will shut down a Deathstar pretty easily, and 'Net' isn't RIP, it lasts until your next Magic phase. You can do 'Net' to warmachines as well, it's got decent range.