1st annual offline tournament "Best Of The Best"

I burned 504 mana and still had 215 mana left. And I was dealing 4-5 damage per turn. Also, the hero had an amulet with +3 morale and +3 luck.

Cool! I wouldn't be able to do that – my Celt didn't have enough intelligence! I had to rely on doubling the damage in the Fortress of the Dead and on brute force. I spent almost all my mana, but I don't remember exactly how much, but less than you. After the battle, I took the artifact and teleported – I barely had enough mana to jump into one of the Fortresses of the Dead for a recharge with the doubling effect.