Which creatures from the alternative upgrade options do you choose?

But the damage of the war griffons from the skill is only half!

75% of the normal damage))
I'll add my two cents in favor of seraphs - they fit wonderfully into the concept of a knight-buffer. Mass divine power on artificial light will enhance them by one and a half times compared to archangels. Besides, the latter often don't have time, just like paladins, to deal with healing/resurrection, and a flying tank that moves around the entire battlefield, with decent initiative, 75-75 damage, and a lot of health, is not bad.