NHF – new heroes for Heroes V 3.1.

No, it doesn't. But why not affect the entire army? And the size of the bonus can be adjusted to be moderate.
But giving more than one unit of initiative seems like cheating to me.

Well, here it is.
The topic was leaning towards making a hero based on creatures :) (and this is almost impossible to implement properly). And here, suddenly, everything....
You can play around with mana...

Added after 1 hour 7 minutes
Make a hero - a devil who takes mana from the opponent))