I don't have a leadership 6 char although all my chars are close to that
Actually, it's wayt better to have only 1 character with leadership level 6 than 4 character with level 4 leadership as the buff doesn't stack. The only case where it would be better to have several leader is if you abuse of invisibility or smoke screen.
Well it's too late to do anything about that now unless I trash about 5 lvls of the game and start again from there which I am loathe to do.
ScrotieMcB-Thanks! My plan is to try and deal with his summons using my two tanks while my ranger/rogue and mage deal magical attacks on the dragon in the form of freezing/fire/and bouldering. It may take hours but I'll give it a go. I also have noted the effect "charm" has on those spiders so I will keep them charmed and hopefully grind out a win.
In the future though I hope Larian will decide to allow Astarte to at least attempt to deal some damage of her own so that she can at least be a more active participant. I don't think the balancing is quite right yet for this fight.