[Wauthan]

Though question to answer. There are a lot of units that I never bother to summon. That don't mean they are especially bad or too costly, just that I don't have strategies that need them. Out of the units I do use but find frustrating I would say that the Wyvern and the Corpse Man tops the list. The former is fairly expensive in the early game and lack staying power. The latter is perhaps best compared to mobile target dummies. Both have their uses but are very quickly rendered obsolete with a little more research or income.