Well some tournaments begin to have some limitations and due that is not always possible (due choice or cost) to play both Slann and Oldlord on carnosaur. If scarvet on carnosaur is still a solid choice, and since cold one cavalry is high risk to be played, I wonder what do you think about a scarvet bsb on foot. I thought something like GW+ glyph necklace giving MR 2 to all the unit (and warbanner if enough points left) How would you play it (if you would play it, I am never tried by myself but thinking it) and in which unit (saurus/TG) and with which equipment?
If it's inside a unit, it's probably a good bet. I'm not sure about the glyph, 45 points is a lot to protect a 90 point 2 wounds. Yes, MR is useful to the unit - but they're only infantry. Honestly I'm not sure I would give him any magic items except a charmed shield. Perhaps a biting blade if you're worried about ethereal.
120 points with bsb, 145 with warbanner (points extra if killed). Yeah 45 are not few but if you can save 1-2 saurus from a fireball maybe it’s worth it. Even if you cannot save yourself directly
Not so often, but when skinks are killed yes. However they get targeted often with other booring spells, like hex for example