No, he is talking about the archmage tower - which when you gave all the artifacts away - is overrun by undead.
It was the most difficult fight for me as a mage in the whole game.
The odds were something like 60k leadership boss, me 20k or so - there were stacks of 2x 6000+ archers - horrible.
So basically after multiple attempts - i found the ice prison spell to be my only way. In the first round i ice prisoned the 2 archer stacks - i could double cast because they were only lvl2. I used greed rage skill on the necro.
Then i got rid of the dragon quick, next round i went for the highest stack an ice prisoned them each round - in between i used my 2 x rune mage stacks to cast phantoms and try to keep the battle on the enemy side. After that i basically killed each stack one by one and then started to rez every troop - i think this fight took 18 rounds for me.
Yep it did
