Made the Beast boss fight possible with this 2 bull riders, 1 charging minotaurs, siege ballistas, 2 elite archers, 2 elite ninjas, 1 elite swordsman, 1 flame archer, 1 elite spearman. Did it on my first try...
So I would like to state a suggestion : I would like to see if there is a upgrade system whereas you can upgrade like upgrading damage and speed but the choice is yours to make either way this is a great game you have made.