Single stack (Red dragons), impossible mage

[DGDobrev]

I doubt there is. Although gremlion has no fire resistance, heal + stone skin will hardly manage to save the reds from suffering major losses from the ever increasing number of enemies. Maybe with 2x Slippery Cuirass + Twinkling boots (+35% physical resistance) and a number of magic resistance items, the damage he'll take is simply way too big.

You can try slapping a flaming eyes scroll on, but I doubt that will help a lot, because if the fairies start hacking at the dragons, they won't be able to retaliate (and that will happen eventually), and that is extremely inconvenient.