"HW rulez" mod (add-on) for HoMM3.

It's like a spell that should be in the library and will be added last during the restructuring process. Although, it's better to just exclude it.

If you exclude it, there might be funny situations like "restructured 3 times, level 1, but no Haste, because it's not in the library." So, it's better to add it last.