HoMM VII Haven Units – Haven faction units from the seventh installment of Heroes of Might and Magic.

a decent angel. Is there no possibility or desire to create a couple more combat animations (at least hit/cast/stir)?

Neither one nor the other, because the cuirassier was conceived as an exclusive for the English version, and it was a pity to waste the seraphim because the Heroes cannot work with gr2 files of version 2.6.0.10 like Age of Empires 3, at least I won't import new animations just like that, and the dead animation is a special headache.