I know i already posted but let me clarify things a bit more. 3 minotaur in front 3 bombbird in back. Middle minotaur with crit egg will kill everything in enemies top 3 row even if theyre all lvl 45+. Bombirds with action eggs mop up the rest. This way you also get magic and earth magic which is best around. Revive magic is nice but with this setup you don't die ever. Just don't forget to get 1 skill into shadow so counterattacks dont hurt you.
Easiest way to win is by unlocking Minotaur and Bombird. 3 minotaur in front 3 bombirds in back. Lethal. Don't forget add 1 skill point into shadow so that you don't get killed by counter attack damage. You just need 2 white berries and blue and purple i think. Just save before you forge them so you dont need to get more white berries.
For hero only achievement I first did orc rage, i think ice shelf is the easiest but you need to upgrade leader of men a bit before that...i actually dont even need to use basic units except on massive portal and ritual path and my heroes are only lvl 7 :)
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 "Protector III"){kind=icon}