Fun patch/fix to creatures that fit their lores

Ok super random. But i’m fascinated by heroes 3 creatures and their lore/origins. With hydras being a weak tier 7 creature, how about we give them the ability to heal to full health after each turn? That’d be a cool fix that links to regenerating ability that is known for hydras. It could be too OP but my mind wonders. Any other fixes to creatures you entertain yourself with?