[Pocus]

no fireshield seen around units which should have one natively (some Abysian units of early age). One may wonder if the ability is really in effect then

IIRC there is no graphical representation of fire shield on units thet have the shield natively. There should still be an icon in their stats. The reason is thet most of these units have great flames on their sprite (like king of flames) and it looks a bit strange with stationary flames and real flames, but it might be a bit confusing. I should perhaps redraw the sprites and use the battle graphics instead