* Thain really have big problems against shootings army, especially against big artillery. Even with eagle clan, because you are not a match against the other shooters. I dont want a shooting Thain army anyway, but its really hard to fight against them.
I had the same problem in my first games versus Elves. Just get two Gar'worgar against shooters armies, and move your units behind them. Once the Gar'worgar engages the shooters, the job's done ! Versus artillery... move quick, in line formation, try to get out of range / angle of shoot, hide in forest... and summon a Totem and / or Wild Spirits.
* The 1 dealing damage spells is a horror for me, it easyle kills your stongest heroes, even with the best armour, kills your giant or weaken your strongest units.... and if you try to avoid it with the blue amulet you have max 1 for to many points and even cant spell your own unit...
Totally agree with you on that spell. The good thing is it has only a range of 5 hexes and if the wizard casts it, he doesn't do anything else. Try to get many weak heroes (like Magor'dak) instead of only one strong. The Balista can be of help (aim the wizard, pray for no deflects).
* to bann magic is also a sad think to me, because of the aspects you have to chose the cheap one, becasue the expensive one easyle can be dispelled for 2 mana!?! why not at least for the same mana?
or give Thain a spell that protect your units from enemys spells (would also solve the 1 damage dealing problem)
Good idea for the bannish magic spell. To protect one of your own unit, you have the magical standard that increases the diffculty of spells by 5. Quite usefull but risky. Another idea is to get a Gar'morrigu which will run accross the enemy lines to kill the wizard in a one-hit (with the 1D3 Hit Points damage). Quite risky, but very efficient.
to make throwing weapons nearly useless for the lion clan
I hope that change will never become official in 3rd edition. The Silver Lions are my favourite Thaïn unit and they will be useless without their good mid-ranged-shoots.