the 18 inch bsb and general range will definitely come in handy more in this list, than if you had saurus. You might want to consider salamanders,...
The Orcs where sent back from whence they came
Det ser ud som om der er sneget sig et velkendt sprog ind.
This might give some inspiration: http://www.lustria-online.com/threads/colourful-lizardmen-ideas-pool.16674/#post-136758
I too think the beast would be the best way to go, as Tetto'eko can handle the Heavens.
Yeah great idea with the comet, use it as an area denial. You culd have some skinks close to the comet shoothing at him, if he loses some orcs,...
You will probably figure out what to do when you know what you are up against, and if not, you will learn something about what works and what does...