Don't know if these are mentioned yet, just throwing in my two cents:
-Dead horses coming back to life.
-Someone slashed in the head with a sabre and only "fallen unconscious"
-Bows, staves, sticks, and clubs (wooden weapons) that could never break but thick metal shields breaks relatively easy.
-Arrows and javelins that stick to shields and parts of the body but doesn't affect movement speed whatsoever.
-There are cows and beef, but there aren't any chickens and pigs, although there's chicken meat and pork.
-Ability to carry tons of money without making your own men envious (and attracting bandits).