The magic system in Heroes V [Discussion]

I don't like curses, I prefer damage spells, but in general, the spells in the Dungeon faction are good: Suggestion, Unholy Word (when playing as Inferno or Necropolis), and Confusion.

I meant in terms of development; Suggestion and Forgetfulness are spells that I will always consider to be overpowered, as they can be used to destroy armies with absolutely no losses. Also, they don't affect us, which is a plus.