Demon castle - Defeat the Demon girl

[Writhan]

Hi,

Ya... let me put it this way. I'm STUCK.

Tried alot of different tactics but this army slowly kills me. I simply don't have the manapool, army or whatever to beat this army. I'm a mage, level 23.

Current stats:
~14000 leadership.
~105 mana.
~23 int

Current army:
~180 elven archers
~110 elven hunters
~8 green dragons
~7 red dragons
~5 black dragons

As both red and black damage deal fire damage, they do very little damage to the demons. And those stacks with 100+ demonesses basicly kill a dragon every turn.

Any ideas?