Magic in Heroes of Might and Magic V.

Yeah, all opponents are just waiting to level up the Banish spell))) At level 20, with an expert-level invocation, Banish deals 230 damage. That seems a bit weak, considering that a Necromancer or Warlock's Phoenix usually has around a thousand HP. And it's better to cast something else than mess around with Banish. Regarding summoning magic, see my post #57 in this thread; I described my point of view on this magic in detail there.