When I started playing this game, I had fun playing it and while some levels might've been a little challenging, it was still pretty good. Then came zombies... at first, they didn't give too much trouble, but as I went further, levels with zombies became increasingly harder. Now I'm stuck at W3-12 and it's litteraly impossible to complete it. Not only do they come in large numbers, there's also necromancers that keep spamming even more zombies, while you're trying to survive against a horde of enemies. Also should not forget about a zombie with smth on its head that's just very tanky, uses ranged attack that poisons targets and makes you or your characters regret eating him, because once again - poison. And as a cherry on top - whenever you push enemies that got too close to you far away, they just come back instantly, moving at a speed around 1 mach. Also should mention paladins that have an ability to stun your character from far away, using some sort of magic or idk, because I believe they should stun your character by basically hitting them on a head but they just don't care. I have also tried using someone's advice to complete W3-12, but it just does not work. Yeah, you can suck up your enemies, but:
1. You are definitely gonna suck up a zombie, that's gonna poison Orca
2. Not all enemies close to you will be sucked up, I'd say only around a half of the first wave or even less. And worst of all, by the time second wave comes, you will be left with little to no hp and energy(DP) and it's likely that there's still gonna be remains of first wave that will finish you off. Also should mention an absurd speed of enemies that come at first wave and "tanky" units getting disintegrated in seconds, like level 12 centaur or minotaur.
I might not be a "good" player, but these zombies(and paladins a little bit too) are a problem.