How is this one done? I give up. My 'most loyal units' are useless and I have no faith in them.

I think it may even be bugged: the ghouls have an "every 3 turns" action with a counter that starts at 3; the Alghoul's "every 2 turns" action has a counter that starts at 1.

It isnt easy, but start with ur crossbowmen shooting strongest ghoul, generally u aim to have all enemy ghouls same hp after playing ur crossbowmen and card doing 10/5 dmg(and after each enemy gets 1 time stronger) but before they get 2nd boost), and finnish all enemies with final card which kills stronges enemy - it kill them all if they all have same hp

ah, thanks. I thought that card was single-target. And when I realized (after posting this) that it could kill multiple targets, I thought it was only because the two ranged-row ghouls had the same health *in their row*, since I could kill both of them with it even though the Alghoul had much more health at the time--but was in a different row.

With the hint of "that card kills every enemy on the board that matches the target's health", it's a very easy puzzle. Do the obvious thing, realize you're a bit short, then make the correction on the next try. 2 attempts max.