[Taqwus]

I once had a Jotun Herse with heroic Strength. *WHAM*
Possible bonuses include...
Valor (+MRL, Standard ability), Quickness (+AP), Heroic Battle Prowess (+ATT), bp's mirror image (+DEF), Toughness (+HP), Tough Skin (+PROT), Iron Will (+MR), Heroic Precision (+PREC), Heroic Endurance (+reinvig), Undead Leadership (+undead LDR), Heroic Strength (+STR), Awe (+awe), Battle Bellow (+(lesser?) fear).