Guys im think about razodonts FoS combo. What do you think buff them with starpriest ( MW on 6s to W ) and priest CA ( +1 hit )? . You can teleport them buffed, you got 6d6 shots hit on 2s and 6s to wound is MW at cost of 240 points! Now sallys cost more, i think its strong!
Razordons are very viable under buffs. They will also out preform skinks when both units are unbuffed. Their combat is no joke either. Solid unit. However, for their points I like Terradons as much or more.
Yes, the problem is that 40 skinks under same buffs will yield you more. So you need a separate starpiest for razordons. This takes them from 240 pts to 360, which is actually more then sallies. They are still random and you may roll poorly on number of shots. If only they had fixed number of shots or rend -1 always, they would be way more interesting.
Unless you can afford multiple starpriests, just bring them as a support & a potential backup threat. Unbuffed they're excellent support, they're also decently good for holding objectives (possibly together with a screen of skinks for bodies) And when your big block of skinks dies and your starpriest becomes available to buff the razordonsthey can transition into your main threat. Also, since they're not too scary, they'l probably be allowed free reign for the most part as there's bigger priorities to kill first, allowing you to have a decent unit left at (near) maximum health towards the end of the game.