Skills in the game

Bone, that's a bad example – in Crypt 4, a Mark is much more valuable than 10 Pokémon, clearly. As in many other cases.

And who are you planning to shoot at with 4 archers? Here, spearmen will create some kind of stack, we'll have about 36-50 spearmen, while we won't be building archers. And what about with Valkyrie? Well, 13 archers. And they still need to be built. And is it necessary to upgrade them, or not? And what will their damage be?
40 spearmen (with basic attack) damage 50-150
40 halberdiers (with basic attack) damage 110-160
13 grand archers (with basic ranged attack) damage 35-55 per shot
26 spearmen (without attack) damage 30-90
So, it's something like that. In short, everyone can draw their own conclusions. I personally made mine a long time ago. I try not to play as Castle :D