HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

yes, Quickspell is quite a cheat. Yesterday, in a Fortress vs. Dungeon match against Twaryna, I used a Grand Order army consisting of 6 Cyclops Kings, 8 Scorpions, 12 Rocs, and some minor units. I was basically going in for a suicide run because I didn't have any mass magic spells, but Quickspell saved the day, and I only lost 4 Rocs. It's nice, of course, but it shouldn't be happening; it's a clear and very annoying bug.