Impossible warrior on freedom islands

[Zuvio]

Ok, I have done the following:

garrissoned my horsemen, inquisitors and cannoneers since I have no option to buy them at this point.

bought griffons as the new tank, kept archimages for shield + shock, bought royal snakes, devilfish and evil beholders (forgot about their mind control ability!)

I ditched the zombie wife and got the frog wife, now waiting on her to change to a frog. I also had the option to buy the snake boots. Royal Snakes wreak havoc once again. Evil beholders' mind control also wastes a turn of an enemy, what a powerful spell this is.

I already cleared half of the main island in one go with this setup, including Tiberius. I just have to make sure I dont lose snakes or griffons, since those are the only two mobs I can not buy on freedom islands.

I guess I was just too concerned with a strategy for an army which I was not yet able to employ. It will come when I have all 4 spirits and hopefully some good spells.