Hey guys, rookie here. I'm a new Lizardmen player, I've been playing Dark Elves for years. I was wondering what you guys think of this army list? I'm still playing 8th edition.
Slann Mage Priest 300 points
Saurus Scar Veteran Light Armour, Shield and Spear on Carnosaur with Egg of Quango 342 points
Saurus Warriors unit of 35 Warriors Standard Bearer, Musician, Banner of Eternal Flames 415 points
Temple Guard unit of 21 Standard Bearer, Musician, Banner of Armour Piercing 359 points
Bastiladon 150 points
Stegadon with solar engine unstoppable stampede and sharpened horns 245 points
Skink Skirmishers unit of 10 70 points
Skink Skirmishers unit of 10 70 points
Cold One Riders Standard Bearer, Musician and Pack Leader 240 points
I'm at 2191 in points. I'm going up against Orcs and Goblins. Should I go with a Sarus Scar Veteran? Or should I use up those points on another larger unit? Should I add a Mage Priest for more magic? What do you guys think? Thanks in advance!!!!
Okay, so starting from the top down:
Your Slann is easily the most important part of your army. Making the TG stubborn (combined with Cold-Blooded rule) means they're not likely to go anywhere.
We are also the only army where the general can also be the BSB. For 25 points you get +1 combat res and can re-roll the above leadership test if you fail. This means two times to roll under 9 on 3 dice, almost as good as unbreakable. Definitely worth 25 points. Plus you can (if you want) have TWO magic banners for the same unit... I don't think that's necessary against O&G's.
Then, the Disciplines... take a look through these. They will definitely give you the edge in the magic phase. I would particularly recommend Becalming Cogitation and either Focus of Mystery or Wandering Deliberations. Take a look at both and choose the one that will fit with you battle tactics.
You definitely need to decide on a strategy before you go on. Do you want to hit one flank hard and turn inwards? Use Saurus blocks to receive a charge and then use dinos to flank them?
This will affect what you choose for the army and also what spells you should take.
The magic lores have been covered very well in the forum already by
@Scalenex I'll post the link when done here.
On the Scar Vet/Carnosaur, definitely get a ward save as they are very squishy and I would highly recommend Blood Roar if you're going up against O&Gs who have notoriously low leadership. The carno's look great on paper, but with their low WS they don't do as well in combat as you think they will (due to rank bonuses, steadfast, etc.) as a support unit they are great.
I wouldn't take Egg of Quango as it is very hit or miss. Up to you.
You don't say which Bastiladon you are taking, but definitely do the Solar Engine (Solardon

)
The Stegadon with EotG (I'm assuming you mean this as he can't take Solar Engine) is fine, but considering you have only two Skink Skirmisher units I would take Giant Blowpipes. Why: you already have a slann and Solar Engine, you won't have enough points to get your money's worth from this. The GB will help against mangler Squigs, fanatics, spider riders and a host of other chaff units that will be heading your way to slow down your units and isolate them so the O&G can gang up on them.
Alternatively, drop the Bastiladon, get more Saurus and use the EotG with a Slann using Light Magic or one of the other 8 lores. This way you will be able to use the -1 casting cost rule as well, then the EotG becomes worthwhile. Especially if you team it up with a Saurus unit with Spears so they have a 6+ ward save and attack in 3 ranks.
I would personally not use the CO riders. They are not worth their points. INVEST in another Stegadon or a couple of salamanders (don't forget that Salamanders force a panic test if any wounds are suffered, you want to exploit the low O&G leadership whenever possible).
The only other detail, is you need to have a plan in place in case your opponent has a large Trolls unit... With their Regeneration and 3 attacks for all supporting attack troops, strength 5 they are VERY anti-lizardmen. Plus if he does River Trolls, it's -1 to hit(!?!?!) which makes them very, very dangerous. You can do Salamanders with flame, followed up by Skink's with Javelins or a Banner of Flaming whatever it is on a unit.
Above all, make it a fun list and have fun doing the battle!