Last Hero spell

[Vilk]

The damages of only one unit becomes very quickly non significant so using a Griffin or Demon isn't really a good application case, better use a stronger/more resistant unit.

One problem you don't quote is when using the spell, too soon and you used it for nothing, too late is too late.

In Swamp area with just one bridge it's easy case anyway and if I remember well horsemen with Achmage shield and eventually Stone Skin does the job with no lost or if mainly poison attack Alchemist also does perfectly the job with no lost.

But well ok I won't argue more about it, there's perhaps some other good application case than the giant turtle.