[sushiboat]

Undead are cool, but I don't see them as unbalanced. The lesser undead get destroyed by the hundreds. The powerful undead should be compared to other powerful summons (e.g., Wraith Lord vs. Air Queen). Undead Pretenders should be compared to other Pretenders that have similar roles (e.g., undead SC vs. living SC).

By the way, why should Banish be effective against powerful undead? It is a low level spell that requires no research (i.e., is available from Turn 1), gives no fatigue, and has multiple effects per casting. That is a pretty good deal as it is. And of course, Banish can hurt powerful undead; you just need to cast it more often before it will deal a killing blow.