I think before PvS, LG and Academy, Johktari Bm and Malakai Priest were the hardest, followed by bloodwave Warlord, and then after that the forcemaster maybe. Johktari Bm had much fewer options without quick ranged weapons and she took A LOT of skill to figure out how best to use her compared to other mages. And similarly, the malakai priest always had Mana/action issues if you didn't use him right. It took me forever to realize that (before he got more options in later expansions) he was mostly dependent on having a battle forge in order to do the stuff he wanted to do.
Bloodwave Warlord didn't play the way he seemed like he should intuitively. His battle orders were useless most of the time, and he didn't have any good ways to deal with enchantments without paying triple spell points. Basically the warlord was better off with a big buddy or a squad of lv2 or lv3 soldiers than a swarm of weenies. Goblins would always be picked off before they could get vet tokens. All of this is really hard for beginners to figure out.
However now that we have the Warlord expansion and the Forcemaster expansion and PvS and LG, Im not sure which is hardest to learn.
Maybe the adramelech warlock? I hardly ever see anyone using her demonic reward ability. It seems like she should be able to swarm but she never does it seems.
Also, I think people have a tendency to forget to use the wizard's voltaric shield? I've seen people use him on octgn but I don't see them use the shield much. So maybe other people find the wizard one of the hardest to learn?
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